Spoilers: The plot needed more work. I didn't like how Rey became "someone", how she chose a name although she transcended names and how it was all a little too much good vs bad. Was really hoping for a more nuanced Grey Jedi take. I'm sure the movie will grow on me. I think I liked 8 better than 7 or 9.
In fact, thinking back on 8, I really thought 8 was going to take us in 9 to go somewhere new with the whole hero motif being deconstructed and a more cooperative everyman and woman sort of victory. We sort have got that with the quick massive volunteer fleet showing up but then Palpatine all by himself neutralizes all that.
Let's all save the Universe instead of one or two heroes sacrificing themselves. Now that would have been an epic conclusion that would have transcended everything that had gone before.