The PC UI itself seems fine. Hotkeys galore.
The 8 abilities limit... ugh. Not a fan of arbitrarily limiting players like that. In DA2 you have a choice between getting more abilities or upgrading current ones, which was pretty good. If you have only 8 slots you have no choice but to get 8 abilities and make them good unless you like switching your hotbar around all the time. That's not ''tactical decisions'', that's just forcing players down a particular build, and since it appears enemies will have immunities it's just way too limiting for no real reason.
This could be really painful for mages, especially.