Word is that half of the film was a re-shoot after the studio was not happy with it. Not always the case, but the vast majority of the time that is a really bad sign.
My source who has seen part of the film says it looks good but the writing is garbage. Just more nostaligia fanfic nonsense. Take it as you want.
I don’t want. I’ll wait until I see it myself, rather than trust some person on the internet who may or may not actually have a legitimate source and also thought TFA was garbage.