This is a personal favourite of mine, definitely one of the best FPS mice I’ve ever used. Very comfortable, safe shape. No software though, so the side buttons are on default (forward and back). Lift off distance is very low but can be changed. Polling rate and DPI can also be changed. DPI steps are 400, 800, 1600 and 3200.
Zowie mice are generally known for their simplicity, but the attention to detail and subtlety is what really sets them apart. Every little curve has a fair bit of thought behind it. I probably couldn’t do it justice trying to describe it, but most people find this mouse very comfortable, probably something like 95%. Unfortunately due to the buttons, it’s usually only recommended for FPS.
If I could change three things on it, it would be the left and right buttons to be lighter and separate from the shell, the side buttons need to have less travel, and the scroll wheel needs to be totally revamped. Still a great mouse, but those changes would be amazing.
And if this is too small for you, definitely take a look at the Zowie EC1-A.