I'm currently playing SWTOR (EU server PvE Bacca's Blade) and really enjoying it.
As story goes its pretty decent. Everything is voiced and feels polished. Normal MMO drawbacks with questing but pretty fun otherwise. I'm currently only level 19 so cant comment on end game.
To note: Quite a few bugs/glitches. Space combat sucks, no plazak or swoop racing and PvP needs balancing but its a new MMO so this is to be expected.
I wanted to play through another KOTOR so i didn't mind paying �40, I'll probs keep it running for a couple of months and then put it down for a year and then start up again once more content is released.