Spoiler Warning! Spoilers ahead. And weird ones, too.
TLDR: The lightsaber duels and force evolution and jedi trope-rejection are great. They take up an hour of a two-and-a-half-hour movie. The remaining hour and a half is rife with bad writing, acting and directing. Two fifths good, three fifths bad is a shitty movie. Trigger Warning: I talk shit about a movie you may have liked.