Temporarily change to the Mouse + Keyboard control scheme when a compatible gamepad is not connected, but Gamepad is the selected control scheme. (gamingtrend.com)
While the mouse and keyboard control scheme works for Diablo and other games in the same genre, the fluidity of the controller trumps the tried and true traditional controls. (selectbutton.com)
Antoniades was also surprised at the fact that many people played the game with the mouse and keyboard control scheme. (wccftech.com)