I just saw the new one last night, so yay I can stop avoiding this topic now lol.
Personally I really didn't like Force Awakens, I thought it was hokey and disjointed, like honestly it didn't even feel like Star Wars
With that said, I really loved this new one, they went and fixed all the problems of the Force Awakens, actually fleshed the plot and dialogues out, gripping twists and turns, excellent imagery, excellent character development, smoothed out continuity of the franchise, and it actually felt like a Star Wars film. I was extremely impressed. The only real criticism I can bring is I felt like they should have had some of the older aliens from the old franchises instead of just constantly making new ones, but that's really background issue, so overall great movie.
I won't give away any spoilers, but I will say, I was extremely impressed with Mark Hamill's performance as Luke. And for the new characters whereas Rey was sort of the saving grace of Force Awakens, in this one the character that intrigued me more was Kylo Ren whom I thought was just a whiny bratty antagonist in the Force Awakens. In The Last Jedi though Kylo Ren really comes into his own as a character and was fleshed out more, and the inevitable collision course of fates between him and Rey I think adds enough dynamic to keep the series interesting.