[quote name='Gourd']This game DOES NOT SUPPORT CONTROLLER ON THE PC.
A lot of people on the Steam forums will simply say that it does, having never tried it firsthand.
I have the Steam game and I am honestly tempted to pick up the 360 version simply because I prefer using a gamepad.[/QUOTE]
The mouse in the PC version this game really only is for pitching the angle of view if I remember right.
That said, I had absolutely no issues playing with a 360 controller on PC after I downloaded Pinnacle Game Profiler and set that up for the game. I put the mouse movement as the right analog stick and it worked flawlessly.
Granted, it depends on your hardware, but the PC version looked and ran much better than the 360 version I demo'd.
The combat feels loose and doesn't have any "impact" to it - the skills seem unbalanced in relation to each other. The difficulty does not curve well - it can be brutal the first handful of levels, but then it suddenly gets much easier.
However, I love the game. I restarted 3 times and was finding new secrets, new quests, and new items every time even on the first map. And I have OCD on such things, so it is pretty impressive that I missed things on my earlier trips.