Been playing around with this a bit, it seems much improved from the few times I have tried in previous patches. They really need to get keybinding in there though before I give it a more serious try, wasd with numbers as powers make it so you pretty much are forced to use songs or non-critical items in 6-8 which is ok for some classes but is pretty limiting on a support where you need to allocate both offensive and support keybinds.
That said, I am pretty impressed with the progress they have made so far -- at least it doesn't feel entirely like vaporware, unlike some other kickstarted 'mmos'.