I'm not sure what movie you guys who are giving good reviews saw. I thought it was a huge disappointment. Here are a few of the reasons:
1. This movie was effectively a retelling of the original Star Wars (A New Hope). Instead of the Empire we have the First Order. Instead of the Deathstar we have the Starkiller (bigger Deathstar). Instead of Darth Vader we have Kylo Ren stomping around in a remarkably similar outfit. We even have the good guys succeed in lowering the "Deathstar's" shields before the good guys in fighters blow up the "Deathstar". Etc., etc., etc. Other similarities have been mentioned by others.
2. I realize that Harrison Ford and Carrie Fisher are iconic actors, especially in Star Wars fandom. And maybe having other actors playing the Hans and Leia roles just wouldn't have seemed right. But that doesn't change the fact that Ford's and especially Fisher's acting was just not good - and that's being kind.
3. The plot just wasn't believable. For example, Rey just happens to steal the Falcon then Solo just happens to come across them while they're disabled? An extremely well-placed earthquake separates Rey and Kylo Ren mid fight? An untrained young girl battles a larger man trained in the force to a standstill (and actually has the upper hand)?
4. Although this was a close retelling of A New Hope, it had none of the suspense of that movie. Was the death scene a surprise to anyone?
I was REALLY looking forward to this movie, but I would give it a C.