Okay… to many posts for me to read right now so I’m just going to post my list.

use the standard light saber sound
explain the republic better and just what gets destroyed and why the people at Maz’s place can see it. This might be done by changing the opening crawl.
hyperspace is used as an instant vehicle rather than one that takes time.
Luke needs a line at the end of the film. Something like, “Hello, Rey. I’ve been expecting you.” Or something cool. To hell with it spoiling the next films.
I’d need to see the deleted scenes and the next movie before I can know what else for sure.

From my point of view, this movie needs more work than any of the other 6 to bring it to where it could be. It has more potential than the prequels, but the final product isn’t as well made. We get awesome characters. Some of the best in any of the films. But we don’t get a good story for them. I loved the death and the potential that it leaves. But there is a lot lacking. In each of the other 6 films, the story came to a close. This one did not.