I have to say that I kind of envy those who have seen the 4 hour version, because I really felt like a lot of cool stuff had been cut out of the film as I was watching it. It was surprising to see a lot of material from the teasers and trailers not make it into the final cut of the film.
A lot of the moments that we’ve been scrutinizing here for the past year, just wasn’t in the film. The shot of Maz giving Anakin’s lightsaber to Leia was not in the film. The overall film actually kind of forgot about her entirely after the scenes on Tokadona. I get the impression that a lot of great scenes have been cut out in lieu of the big CGI blowing up Starkiller Base climax.
Although it seems unlikely, I’d love to see an extended cut (in the vein of the LOTR movies) one day.

The ending of this will will probably create the most conflicted feeling for most OT fans. Thinking about the movie the day after I saw, I’m now realizing how much my mind is lingering on the ending, and how much of the films strength lies in the first half. The first half is really were the film tries out something new, and focuses on the new characters. The moment Han and Chewie appear, we start getting the occasional Abrams-nerdy-reference. And when it comes to the big climax, you really do get a déjà vu feeling. However, cynicism surrounding the predictable climax shouldn’t get in the way of the fact that they did actually make up a lot of new stuff and characters for TFA. I really hope that these ideas and character will get to flourish in Ep. VIII & IX now that there’s no particular need for the same level of nostalgia to convince people to go watch it.