Well, in phase 2 of the beta we could use a controller.
Its was pretty easy to handle (though reaching the abilities left on the directional pad takes some time getting used to). We didn't have the PS3 specific UI though, just the cross bar for abilities, so I can't say a thing about how easy it is to navigate the menus.
Sir Markham pointed out, drinking another brandy. "A chap who can point at you and say 'die' has the distinct advantage".
The controls seem perfect. 16 easy access hot keys will do wonders.
I'll just need to get a report on the PS3 version's performance to see if it matches my laptop. Really hoping it will. I don't usually care about playing a game at 30 frames or even less, but a decent frame rate is pretty important here for areas with lots of players.