Needed a mouse for gaming and 3D modeling, wanted it to look professional, be lightweight, and did not want to spend a lot. This mouse is great on all accounts.
Material quality is about what you would expect for the cost. The majority of the plastic seems a little on the brittle side, but has a nice feel in the hand. The rubbery portion near the thumb has a nice, grippy texture to it, and doesn't feel gross if your hand gets a little sweaty like some cheaper products.
As I said, it is lightweight which I find to be great for gaming and easier on the wrist after long sessions. The Corsair software is pretty average, but haven't had any problems with DPI or LED color tuning.
Lastly, the buttons: the scroll wheel has a great tactile feel with every "bump" (which was a MUST for me for switching weapons accurately in FPSs), and the peripheral buttons feel like those you would find in more expensive products as well. Probably a result of the main body plastic being more on the brittle-feeling side, I found the R/L mouse buttons to be a tad more linear to press than I was expecting (as opposed to a very distinct *CLICK* you'll feel on mouses where the RMB/LMB are two separate pieces of plastic from the body), but it grew on me after one night of use.
After a month of use, recommended to a friend new to PC gaming and another that is a veteran, and both love it.