Music that doesn't immedietaly scream Star Wars, no familar imaginary or easily noticeable fan service... it almost feels like they're making a new movie instead of cashing in on nostalgia alone like the last two?
It depends on what nostalgia you mean, Rogue One was nostalgia in terms of design and filled with nostalgic Easter Eggs, while Episode VII was nostalgic through its storyline.
What I noticed is that when we see Kylo Ren's face during duel, he has a scar and a cataract on his right eye, finally looking decent and intimidating. I also liked every shot with Rey and Ahch-To. And, every rumour turned out to be false - that we won't see Luke (No face-revealing, yet he's present) and that we'll see