Unfortunately I've been through my medium sized hands a little trouble with the fit of the mouse. The narrow sides are too narrow for me, the wide side panels too wide, and I must say that I get used gradually to the wide side panels. The shape of the mouse is a total of a major triumph, I think after a short adjustment period should result my problem. Furthermore, I could see smaller processing errors as small flaking of soft-touch surface on the side panels, as well as the fact that the mouse places more on the aluminum plate and the side panels to slide as the Mausglides as these might be pressed too far during assembly were. Ersatzglides 3M will be but. Last but not least I had initially some problems with the driver, I had to uninstall my Logitech keyboard driver. Something annoying!
Despite these small shortcomings, I am using the mouse more than satisfied, only the ergonomics is not quite perfect for me (hence the star deduction). The buyer a very precise sensor pleasant and precise click, many settings in the driver and good sliding properties even at Stoffpads (with my co-previously tested Sharkoon Fire Glider for this expected (much better than that by me previously tested Razor DeathAdder 1800DPI or Sharkoon Fire Glider), this was terrible).
----------------
Summary:
+ Very good appealing and very precise optical sensor (ideal for FPS)
+ Pleasant click (haptic and audible) by OMRON switches
+ Cloth-wrapped cable
+ Many settings in the driver
+ Good sliding properties (Ersatzglides 3M attached)
+ Beautiful appearance and accessible buttons
+ Very reasonable price
o side parts can be replaced, I'm missing here a intermediate size
o Some small processing error (one however note the competitive price)
o Long-term durability is questionable at this price
- Driver incompatible with other keyboard and mouse drivers
- Driver software starts sometimes not to call
- No DPI display (but can be made visible by different colored lights)
- It can be set only 3 different DPI levels "on the fly"
Since the disadvantages, however, are of little weight and mouse over the already mentioned several times, very precise sensor and the high gliding features, I can express an unqualified recommendation to buy at this price. Even a much expensive Razor DeathAdder (old model) can not keep up in my opinion.