If like me you are fed mice "tank" from Logitech and Microsoft, the DeathAdder is for you. Simple design, solid, and especially a very good glide, with an ergonomic shape. In pro FPS players (UT, Quake etc ...) the old mouse was the legendary Microsoft Intelli Explorer 3.0, thanks to its shape. Since then, Microsoft and Logitech mice are either too big or too elongated, with too many accessories, buttons etc ... Here Razer returns to the simple and effective, with a current sensor course, ideal for games nervous. I'm just disappointed with the price, the first version (not refresh) much cheaper (40), while this new version does not bring anything extra. In short for those who want to regain the feeling of exploring 3.0, take this mouse, or the Microsoft Habu (in partnership with Razer). I have DeathAdder for 3 years now and I still do not have any problem, the runners are not even worn ...