I use the mouse for gaming and it works really good. If you want to play Fps games then you should buy it.

Pretty nice for the price. Quality feels solid. Software is easy to use and feature rich but, the mouse works out of the box even without it. You can bind any keybourd key to any mouse button. Battery lasts a good long time and charges quickly.
Would definitely buy again.

Very very good.

It has a claw grip design. Fits smoothly in the hand. Easy-held in hand mouse. Her string is like a boiled noodle, or like a wiggle shoelaces. It has a rather dubious feature. This way I can understand why this gadget is considered cheating when it use. In my opinion, an omron d2f-01f switch should be included, and from that it would be even more acceptable, and it will got more tuf durability.

Summary:
4 stars for functionality and 3 stars for comfort/design

(It's rather uncomfortable for me even after 3 weeks... :( I feel I just can't handle it properly) I just gave it 3 stars, because I'm actully considering to replace it with a Logitech. Might update it another 1-2 weeks later if I manage to get used to it.
(Before this I've used A4tech x7 for about 8 years, which had NONE of the problems mentioned below, my only problems were that its sensor is not so good, it has only 7 buttons (+1 dedicated dpi button) and you can't program the buttons as freely.)

Pros: many buttons, programmable (even with macros), good wheel, massive/solid construction, good cord, great sensitivity (even on shiny, uneven surfaces), 1 ms delay, thumb rest, white color :)

Cons:
- I don't have small hands (I'm a 180 cm man), but in overall it still feels a bit large for me
- can't turn off the battery status light in the wheel
- it's a bit hard to push the midle button (at least in my opinion)
- there's 0 grip on the edge of the wheel (you have to put your finger on the top)
- maybe it is too much tilted for me
- it's hard to handle the thumb buttons (at a time you can confortably reach only about half of them)
- especially the large forward and backward buttons should be smaller, I can't confortably reach both of them at the same time
- it's a bit akward that the forward and backward buttons lay deeper than the other side button
- the bottun 13 (backward, the one with the shiny surface on the side) feels a bit clumsy to press
- it's akward to have the profile button on the bottom (especially that you can't change the profile with a keyboard shortcut)
- you most likely have to hold it the "regular" way (index finger on LMB + wheel, midle finger on RMB, ring finger and pinky on the right side), I found this the only somewhat confortable option. But I'd prefer to use the wheel with my middle finger and ideally the RMB with my ring finger, because it's akward when you'd use the wheel and LMB at the same time. (If you'd hold 3 fingers on the top, your pinky would go exactly on the edge in the middle of the right side.)
- and my biggest problem: it's hard to pick it up without pushing one or more buttons, because it has litle to 0 grip every where
1. there's a smooth hard plastic everywhere (it should be somewhat "grainy" at least, for now I've put some leukoplast on the sides)
2. all the sides are way too "vertical", if you don't hold it strong it easily slips out of you hand. On the left side you can't hold it too stong because of the buttons, whith your palm there's almost nothing to hold on (the back-left part is way too small/flat), on the right side even though there's place for two fingers, both positions has an almost completely vertical side.
3. even if you manage to grab it with 3 fingers (thumb, ring finger and pinky), it wants to tilt backwards (because it's back side is much heavier due to the battery, and there's nothing to hold on with your palm)

Note: a large hand woud probably "solve" multiple problems mentioned above

Other: it would be nice to have a tilt wheel, and 1 or 2 additional buttons next to LMB (and/or maybe next to RMB as well). These could replace the upper row of small buttons on the left side. Plus I'd appreciate separate dpi and battery feedback leds.