I too am apprehensive. I have bought my tickets and will be happily going to see it, but whether I expect it to be good is another matter. I can't shake the feeling that this feels like a license cash in. It doesn't even look like a Star Wars film, and they've thrown in a bunch of TIE Fighters and X-Wing just to remind you that it IS Star Wars. Same goes for the music too.
Honestly, I'd LOVE for this to be good, but they'd have to have a pretty good excuse in the story for this to exist. For those like me that never bothered with the EU, Episode 6 resolved pretty much everything. The new super-death star 3.0 makes me cringe too.