I couldn't bring myself to finish DA2, though I finished origins twice. The only merit I'd say it has is an improved art style and more interesting animations (if over the top). My complaints are, horrendously reused environments, the story being much more linear and detached than the first, some voice acting issues and a lot of gameplay bugs – my game is currently stuck on not being able to recruit one of the companions and they managed to leave out implementing auto-attack into console versions. If you're thinking about buying this game, I'd recommend waiting for a patch.
Quite disappointed to see that this game has obviously been rushed out the door to capitalize on origins.