Comments: Nice stick, but lost out to Yonex VCORE 100 S for me. Felt less stable and less solid on contact, a bit too much power, a bit less feel, excessive power from the ground and on volleys being the biggest limitations. The kick serve is sick with this racquet though.
From: Anon, 5/12

Comments: I have played with this demo for a few days and while I have served well with it, I cannot say the same about my groundstrokes. While this racket is very fast through the swing, it does not have the mass of my trusty RD7 and as a result, it does not hit a very 'heavy' ball. Plus, if I hit the ball without tempering my swing, it will sail long.
From: Pat, 5/12

Comments: This racquet has remarkable power and control. The feel and touch is there as well. Serves seem to truly take off and accelerate. I concur with the other remarks on sailing, long balls - this can be reigned in by an adjustment to add the topspin on forehands, underspin and driving movement on backhands and downward motion on volleys. Very comfortable - a nice stick to play several times comfortably throughout the day.
From: Matthew, 4/12
String type and tension: Prince Synthetic Gut / Volkl, 55 lbs

Comments: I LOVE this racquet! I had been playing with the Yonex RDiS 300 and found that racquet allowed me to hit the shots I wanted -- topspin, slice, etc. when I wanted. But, this racquet is such a huge improvement, my coach said it was like night and day. It is much more powerful and allows me to swing much faster, creating more spin. It also feels much softer than the RDiS, even though it is rated as a stiffer racquet. I have it strung with all Babolat RPM Blast, while the RDiS was strung with a RPM Blast Hybrid (with natural gut), yet this racquet allows for much more touch on both volleys and drop shots. I do agree with one of the other reviewers and noticed that balls can fly long much easier with this racquet if I don't put a lot of topspin on my groundstrokes, under spin on my slice, and hit down on my volleys, but it's an adjustment I'll live with for the added power. This racquet is AMAZING.
From: Jennie, 4/12
String type and tension: RPM Blast 56 lbs
Headsize: 100 sq. in
NTRP Rating: 4.0

Comments: Just demoed this for two days. First of all, this is a very comfortable feeling frame given it's rather high stiffness rating. My demo was strung with a very good multi at probably just above mid tension. With the multi I found the power a little too much for ground strokes, and had a few flyers. However I think a poly at about mid would help reign this one in just enough, and it would still offer a very confortable hit. This frame felt very solid on all shots, with no flutter at all. And mishits were almost zero given the seemingly huge sweet spot. The weight and balance made it very maneuverable from everywhere, and yet the stability was also exceptional. Volleys were great as touch was there in spades. If I have one minor nitpick, it's the grip shape. I prefer the Prince more rounded-off shape, and this one felt more like a Head or even Volkl. Overall though, this offering from Yonex is really good. It delivers an excellent balance of elements that would likely assist anyone's game from about the 3.5 level on up. Absolutely worth a demo if you have never hit with a Yonex before.
From: Tom, 4/12

Comments: I was getting arm pain with the Babolat pure storm so I decided to go back to Yonex, this racquet is very forgiving on my one handed backhand and slice which is great as it gives me confidence. The kick serve is awesome with massive spin. The only problem I find is my forehand needs a lot of spin to prevent the ball from sailing. I tried putting lead tape at the handle and raising my string tension all the way to 60lbs and kind of worked.
From: Carlos, 3/12

Comments: Best racquet I ever had !! Nice pop, great for volleys, amazing on serves. I'll buy a second one, and they will be in my bag for a long time. Nice job Yonex !!
From: POL, 3/12

Comments: It's my first Yonex ever and I must say although is a great stick is also difficult to work with. However on ground strokes and volleys is amazing. I just received my 2nd xi and I will use different string setup.
From: Manuel, 3/12

Comments: I agree with the consensus of all the other users. The new xi 100 is by far an improvement in all aspects over the old Ezone 100. The older Ezone is my racket (X1 BIPHASE) and I decided to demo both the 98 and 100 Xi models. The 100xi was more powerful and no loss in control with groundstrokes. When I contacted heavy balls I was not pushed around and could respond with equal pace. The best part for me was the decent ball return when I was forced into a desperate lunge at the ball. I made shots I could not with the old ezone. Touch and low volleys to sharp angles made me smile. I have just placed my order for the 100 xi. As for the 98 xi, I found the racket to have a deadened response. Even when adding racket head speed I felt the racket under deliver. I tried several times in the same demo session to see if I liked it and I never did. The playability for me between the 2 models is vastly different
From: Gerald, 2/12

Comments: I have hit with a lot of racquets, but never have I tried a racquet that is stiff and powerful yet SO comfortable and with so much control! Amazing technologies went into the xi series - no gimmicks here. The stability is phenomenal - my hitting partner's shots are usually heavy and with massive spin. But it's like the xi knows how to pull some Jiu Jitsu magic, off-setting that pace and spin and then let me hit the ball the way I want it. Of particular mention is the xi's sweet spot. I am not joking but it feels like practically the whole racquet face IS the sweet spot! "Off-center" hits on the xi are balls that actually hit the frame. I can't say enough good things about what Yonex has done with the xi series. I have gone through at least 15 different types of racquets in the last 3 years and it's been frustrating, to say the least. The search is finally over. I bought 2 xi 100 and they will be with me for a long time. I think the xi 100 or 107 would appeal to most players out there. Have an open mind, give Yonex a try.
From: DH, 2/12

Comments: Agree with both Matt and Kevin. This new ezone is a definite improvement on the old one not that that was bad. The frame does look a little less pronounce maybe it is the color Kevin. But the power and control appears to be vastly improved. Overall a great racquet and a purchase I am extremely satisfied with.
From: Craig, 2/12

Comments: This Yonex XI 100 has been hands- down my favorite first day with a frame ever. Great power but loads of forgiveness here. I really wanted a 100 in frame with a 16x18 string pattern, and after hitting the Wilson Juice 96 and 100, and the Wilson Prostaff BLX 95 and 100, this Yonex was the clear best for my game. The only thing that seemed a little off was the control on the serve, but that could be slightly attributed to the 16x18 string....or the fact that my serve is on and off regularly no matter what racquet I use. I found better directional control on ground strokes then I have seen in any previous racquet, and great maneuverability and control at the net as well. I used to own the EZone 100 from last year and never really got into a groove with that one and ended up selling it, but this one was far different. Once you see this racquet in person you immediately notice that the Isometric shape is more pronounced in the new XI then other Yonex frames, even compared to last year's EZone. However, it was not so square that it was off-putting while playing. I think the dull paint scheme helps with that fact....if this frame was brightly colored then the shape might be a little more distracting. Anyway, great frame that I will have in the bag for a long long time.
From: Kevin, 2/12
String type and tension: Dunlop Explosion 18g, 54lbs

Comments: I used the older model and was waiting for this new one.I have been using this racquet for 4 sessions now. Yonex ezone Xi 100 is a total different racquet and much better than the older one somehow they manage to do it. The feel is much,much better on ground strokes, the connection between all 3 elements is better. The power of this racquet comes easy, it is very, very maneuverable, very stable and solid like the older one, yet more comfortable. The swing spot seemed to be bigger as well. Awesome racquet that helped my weak one handed back hand. My second serves got better control and pace with this new racquet as well, I highly recommend it. I think it is better than VCORE 100S.
From: Matt, 1/12