After playing the game up to level 25 I'm probably going to continue playing it somewhat casually until GW2. For me:
Positives:
Dialog system, particular with a party.
Vast zones.
Story (it's SW, so it's not that deep, but enjoyable for what you get)
The game controls fairly smooth.
Negatives:
UI.
Loading.
Companions.
I don't think the game is as good as Vanilla/BC WoW was for me, and probably won't hook me for years like those did, but it has been the next best thing to come along and is proving to be a good time killer. I really hope the UI changes come soon or they're going to have a lot of people wishing they would allow mods.
It's sort of unavoidable with planets but the game really does make you miss the seamless continents of WoW.
You need the card.