The mouse is very comfortable to hold, the dimpled sides feel very good, you can quite easily lift the mouse (which is also necessary in the low DPI number). The sensor feels ran Supe, the mouse pointer and the crosshair can always be positioned precisely and predictably.
Those looking for a replacement for the Microsoft IntelliMouse Explorer 1.0 is the right place for the Razer DeathAdder!
As a successor to the Microsoft IntelliMouse Optical 1.1A the Deathadder NOT suitable. On this mouse is most likely the Zowie FK1 out, which is slightly too low.
