The Old Republic isn't terrible, but it's not terribly good, either. It isn't really breaking any new ground besides being fully voice acted. Like any other novelty, it eventually wears off, and when you think about how much time and money they must have spent on the voice acting when there are a lot of other substandard facets of the game...well, yeah.
When it goes free-to-play, give it a shot, if just to play through the class stories. Most of the characters are good, in typical BioWare fashion. I've got a 50 Trooper (can't resist more Jennifer Hale) and a 50 Sith Warrior, which is great if you enjoy being a dick. I've heard good things about the Imperial Agent storyline as well.
A totally random observation about the game is that someone in charge of camera angles totally has a thing for ass. Not sure why I thought of that, but I haven't gotten much sleep lately...
Oh, one more thing: I don't know how much has been fixed by now, but TOR is brutal on computers. The engine is really poorly optimized and has a hell of a HDD bottleneck - if you can't install it on a SSD, expect long loading times. A lot of people also have problems with framerates. BioWare was trying to blame it on people's crappy computers from the beginning, but that wasn't the whole story. A lot of people with rigs that could curbstomp the best looking DX11 games were still having issues. My old laptop would drop to 5 FPS or so in combat or in the fleets...not completely unplayable, but a total PITA. Plays fine on my new computer, but it could be luck. Just had to make sure that warning was out there.