Okay, now that I've seen the movie (last night, date night with the missus!), I can crack open this thread and maybe contribute. Here are some impressions:
1. I thought the movie could have been better to tell "a" story (not necessarily "the" story). IOW - I found it a bit fragmented and relied heavily on my own knowledge of the Star Wars movies to spackle in some nuances. In fact, whoever said this was a tribute movie got it right... I really didn't feel I was watching a movie on it's own merit, but a movie that was a tribute movie and way to say good-bye to old characters while somewhat introducing new ones.
2. My first words as I walked out of the theatre (to my wife who understood fully what I meant): "This was a movie for *them*, not a movie for *us*". This movie was a PC clean up of what would never fly today by original Star Wars standards (White male hero Hans, white male hero Luke, white male mentor Obi-Won, etc.). Is that good or bad? I dunno, but it is what today's young audience expects in movies... not to be offended while still liking the movie for the action, et. al. BTW - good to see that the villains are still all White Males (with a few Carly Fiorina's mixed in - nice touch with the Nazi-like stage setting when the leader announces the destruction of the Rebels with their new weapon and all the audience of storm troopers salute with a clenched fist similar to the Nazi salute), makes the differences between the Rebel forces more plausible as creatures and mix race, mix gender, disenfranchised, even more heroic. I think the movie producers know their audience all too well not to be purposeful in what they made in this movie.
3. Rey - she struck me as Luke reincarnated, but now with girl power instead of whatever what was portrayed back when (nerd power? geek power? kid who usually gets bullied learns how to use power within?). She never showed her strength because she didn't know she had any... other than knowing all too well how to run, either by foot or by Millennium Falcon. I thought the movie did well to keep her under wraps (so to speak) and make her expressions all too real. So who was heroic in this movie... a stand up and fight them kind of guy? Why Finn... of course. The perfect replacement for Hans, who also tried so hard in the first Star Wars to be the "I don't care, I just want to leave" kind of guy, all the while he was always at the forefront fighting someone or some thing. Back to Rey - I don't think she's Luke's daughter... but I do think she's related to the Skywalker clan somehow. I'm betting the old man in the first scene was a distant cousin or brother to Dart Vader who went underground early in life after his mother was killed and he witnessed the massacre his brother Aniken unleashed. Or at least he's a nephew of Aniken and thus Rey is his daughter and why he left his daughter on an island planet to keep her away from what he may have seen as the ultimate fate of anyone who uses the force.
4. Bo - what in the heck happened here. We meet this guy, he is cool, he escapes with FInn, and then.... he's AWOL for almost the rest of the movie until the end. WTF? And the "I was thrown off after the blast and I couldn't find you... okay, bye - bye, no time to chit chat... gotta go fight bad guys" 10 second explanation? Seriously? Is this the new genre of storytelling... as if kids nowadays can't handle being told a story the right way? *Sheesh* I think his character redeemed himself well at the end, but I was left with the impression that somehow I'm supposed to know this guy and how good he is.... basically, take it all on faith he should be the guy leading the charge. Taking a major character at the beginning of the movie and making him a minor character in the end is bad movie making. Sorry.
5. Ren/Ben - I liked this character. Somehow, the emotional outburst and trashing the room was unexpected but very welcomed. I think this character will carry the next few movies and although he'll never be Dart Vader, he'll be his own villain worthy of the Star Wars lore.
Overall impression of the movie: My wife put is best "I loved it, reminded me of the original Star Wars". I think our perspective is tainted by our own experiences standing in line as teenagers for the first ever Star Wars movie. The people behind this movie did well to say good-bye to the old and bring in the new. Nice bridge movie. Not a nice movie to stand on it's own, but a very good bridge movie with a bit of tribute to the old mixed in.