I've just seen it, and it was great. It wasn't even as much as a ripoff of
A New Hope as I had feared - really, the only nostalgic element that I felt detracted from the movie was the Death Star retread. It's not introduced until over the halfway mark, and when it is, it's essentially superfluous to the more personal story involving Rey and Finn. I thought that Snoke was pretty silly, and Captain Phasma was remarkably underused for a character as heavily hyped as hers, but I can't think of anything else that bothered me.
Now, on the very important subject of the lightsaber battles, I really liked how this movie handled them. If there's one element of the prequels that doesn't get the criticism it deserves, it's the action scenes that involve lightsabers. Here, we got to see the actors give performances, rather than anonymous stunt doubles perform highly-stylized choreography. And building on what Vindictus said, as well as cribbing from Plinkett, it was the prequels that essentially reduced Jedi to being little more than ridiculous lightsaber ninjas and their worth as a Jedi to being little more than their skill as a ridiculous lightsaber ninja. The fact that Rey managed to beat Ren (why do those two names have to be so similar?) doesn't automatically make her some kind of super Force wizard or Jedi master, or even Ren's superior in swordsmanship. Despite his injuries and the fact that he was trying to take Rey alive, Ren dominated the fight up until the key moment where Rey managed to truly use the Force. It's a pretty common trope in action movies for the hero to suddenly turn the tables on the villain in the climax when they get their second wind.
Finally, I remember that the marketing seemed to imply that Finn was going to be the main protagonist of this, or at least the character who fit into the "chosen one" role, what with posters showing him with a lightsaber and everything. It led to reactions like this:
An epic story where Jedis are downtrodden and forgotten, then one newbie rises up to defeat the Evil Empire (This time he's black, folks!) In theaters December 16!
Not that Finn wasn't great, but I liked that it ended up being Rey who's presumably going on to become a Jedi and discover her destiny and all that. She felt like a much better fit.