Couple scenes took me out of the film a bit:

When Han, Chewie, Rey and Fin are on the Starkiller base looking up at that “oscillator” thing and the battle is going on above them. Looked like they were standing on a projector or something.
Han walking out on the plank towards Kylo, same thing as above. The background just did not feel real, Han was just not blended in well here.

Everything else was fantastic. Snoke and Maz were fine, not perfect but didn’t take me out of the movie at all.