Rubarack: The more direct character control means it's a lot of fun on a controller but the interface needs a lot of work.
yupper: Yeah. I use a gamepad + x360 controller emulator and interface navigation is a nightmare. For the life of me, I can't figure out how to consistently equip armours or weapons in the inventory screen, and always end up having to use the mouse (without a cursor).
Outside of combat, I find the controller to be more intuitive with respect to movement (no need for walk/run toggle, for instance). My hand hurts from WASD.
I can pretty much work out the menus (call up inventory, use RB and LB to select the armor tab and scroll down the armor and press A to select). What has me though is you can't map back to anything, it has this weird abortion of an attempted radial menu, there's no button for the map and if you attempt to bind powers to keys it just behaves strangely.