I think of the movie as more of a reboot/remake, a retelling of a modern myth, so I didn't mind the familiar tropes. I might have preferred a threat that wasn't just another Death Star, but I think the new actors are just delightful, and the special effects are not so gratuitous. I love the Kylo Ren character—he's a Vader wannabe; his mask is completely optional; his lightsaber looks like something he probably designed when he was 9 years old, playing with toys. He's kind of a meta-Star-Wars character, somebody as steeped in the lore of the original movies as we are. And it was great to see Ford and Fisher in those roles again.
I saw it in 2D first, then went to see 3D later. I tend to think 3D doesn't add anything to most movies, but this time I really enjoyed it. Abrams and crew used it judiciously, I think...I actually liked the movie better the second time.
I didn't realize the current-tech 3D could be shot on film, though. Is the principle the same as it was back in the old days of 3D?