Playing with a game controller myself at the moment. It's less frustrating with it, but I think I'd go back to keyboard if we can bind everything on our own or at least the camera on the arrow keys.

The recent update brought a little downside again though. I like the targetting filter actually but placing them on the up/down arrow keys on the controller made me cry. Since I'm used to target myself with the down arrow key. Now I'm getting all f**** up with targetting and stuff.
But a good solution to this would be bind the targetting filter only to the UP Arrow key and leave the down arrow key for self targetting. Since it's just 4 options (All, Friendly, Party, Enemy) it's ok to switch to the desired mode with just the UP arrow key.