I liked the main plot thread with the Force users well enough. It had some neat subversions but one in particular I'm still not sure of.
(Ultra Mega Spoilers below, read at your own risk)
Snoke being out of the game so early in the plot is somewhat shocking (Though they made it a bit too predictable 5 seconds prior with Rey's lightsaber rotating- I get that it was to preserve continuity in the scene but I feel it kinda ruined what was meant to be a big plot twist. If they didn't have that shot it wouldn't be that hard to figure out what happened. Or, hell, a more subtle lightsaber rotating in a wide shot of Snoke instead of that close-up would've worked too) but it seems like something of a mistake. I really liked Kylo Ren as the enforcer villain and I found him compelling, but I don't feel he'll work as the main villain at all. Part of the reason he worked for me was precisely that he was not the main villain, because Snoke filling the role of being the real menace freed up Kylo Ren to be a more pitiful character.
I guess I'll see what they do with it though.
Didn't really like the Finn/Rose side plot.
I kinda get what they were trying to do with how it ended up, but I thought it really dragged the movie down. It somewhat ended up like a "had to give them something to do" plot. Wouldn't be a problem if it was interesting on its own, but I didn't find the casino planet interesting at all. I also didn't really get a good feel of Rose's character. Personality-wise she felt kinda bland, I don't feel her presence helped develop Finn, and her actions at the end of the movie just made her seem really short-sighted and dumb.
The romance angle felt really tacked-on too. I didn't really feel like they bonded during the scenes on the planet at all, Rose just dumped some backstory on Finn.
Also I really, really, dislike the Disney-Marvel style of comic relief here. Some of it did work okay when it felt like it was something the character might otherwise say, but other times it just deflated all the drama. Comic relief was in all the films too, but in the good ones they felt like they flowed naturally from the dialogue and the characters instead of obvious jokes that completely ruin the tone.
Can't do worse than Jar Jar Binks I suppose, though the mid-section of the movie did have the headscratching inclusion of some CGI abominations that were oddly reminiscent of some special edition changes/the prequels.