I am still enjoying the game. The class storylines are the real redeeming portion of it, really - loving the Trooper and Agent stories. I don't care much for WoW-like MMOs, but it's evocative enough of KOTOR that I'm still playing for the story.
That said, I bought a 3 month sub and then immediately cancelled after they billed me. Endgame and content updates will determine whether I think it's worth it to continue, especially when I'm inclined to save that cash towards Skyrim and Reckoning.