As I once said about The Empire Strikes Back, "It’s time to admit that I am not the audience for these films." And that's one of the series that I liked.
The Last Jedi is 2 1/2 hours, and I won't say that's too long, but it's too long for a non-fan like me. The Last Jedi didn't stink, and the supreme annoyance that is C3PO thankfully didn't get much screen time. But I don't really care about these characters, and not a lot of effort is made to convince me otherwise. Adam Driver is a very fine actor, and his face lends itself to tortured emotions that live just under the surface. But it was him that interested me, not his character. It's nice to see John Boyega of Attack the Block, and Daisy Ridley's spunky Rey is a good idea, although I wish the franchise wouldn't be so self-congratulatory about featuring an ass-kicking female character when there are many other good examples (Starbuck, Buffy, Furiosa). Hell, the original Leia is a more important cultural landmark than Rey.
So I don't care about the characters, and the plot is too obviously serviceable in the way so many second-in-a-trilogy movies are. That leaves the action, and if CGI is your thing, this is some great stuff.
As I watched The Last Jedi, I found myself thinking of several other productions. Two were television series. Battlestar Galactica had its space battles, and it had its archetypal characters. But the battles were always secondary to the rest of the show, and the archetypes quickly offered depth, more so as the series progressed. Battlestar Galactica was about identity, and politics, and religion, and the military ... Star Wars is about parent-child relationships and space battles. I also thought about The 100, which doesn't really have the budget for a space opera, so they concentrate on other things, regularly surprising us with how far they are willing to go to blow past whatever stereotypes you might have about a series on The CW where the title refers to teenagers. As showrunner Jason Rothenberg said, "Remember, you signed up for a post apocalyptic nightmare. Don’t be surprised if that’s what we give you."
I also thought about the Mad Max movies. Compared to Fury Road, the action scenes in The Last Jedi aren't all that. And face it, lightsaber fights are boring, especially when you consider what is being done in movies like The Raid films.
I realize there is an audience for the Star Wars franchise, which is why the only relevant point here is that I am not that audience.
Here is the trailer from my favorite John Boyega film: