This is a great mouse for both gaming and daily use.
1) Comfort - the mouse fits nicely in your hand and feels natural. It has a smooth finish, and has proper weighting as to not feel cheap, but also not overly heavy for prolonged usage periods
2) Setup - You will want to download the software from Fnatic to configure the color(s) of the mouse, which are vivid and just look cool - but more important it has 3 different profiles which you can preset to different sensitivities. A simple button click below the mouse wheel will scroll through these profiles, along with 3 lights on the left side of the mouse, indicating which profile you are on. The application is easy to use and set each profile to the right feel for its use
3) Function - the 3 profiles make this mouse shine - you can set the dpi to race around the screen or take serious effort to move the mouse even small amounts, leaving you a very granular set of controls to work with based upon your needed function. I found myself with 3 distinct presets, one for basic web page usage, one for when I was playing a game that required precision, and then one further for when I was working on editing pictures where you need to move oh so carefully.
4)Buttons - unlike some mice that you can program launch codes into, this has a simple setup, 2 buttons on the side, the scroll wheel/button, and the center button for profile cycling - simple, clean, and comfortable
I love this mouse, and would strongly encourage anyone who needs a high quality mouse and keyboard set for both gaming and general usage to seriously consider this, and a FNATIC keyboard as well!