Never been a huge star wars guy.
I was hoping for some plot and was disappointed. My fault, really, expecting that from an action movie.
I think I'll stop watching star wars the same way I've stopped watching super hero movies.
The movie itself was middling. Too long, bad pacing, too many fights and explosions that lead to scenes that should have been emotional just falling flat.
The the two jedi and two sith did a good job. Skywalker et al actually had some good moments discussion something that could have been deep, but its left extremely surface level and then buried under several battles too many that its difficult to really say what it was they were driving at.
As others above have mentioned, there's definitely some social commentary in there that I find more interesting than the movie.
I would think, since only the Light side has found a way to survive death, that every generation the sum total knowledge of the light side and the force would increase for the Jedi - even if there are fewer of them. Conversely, since every sith master ascends by murdering the previous one, there would be a hording of knowledge that would simply not get passed down. With this dichotomy, I'd honestly expect the dark side (which might be easier to get stronger, faster) to be so diminished at this point for lack of proper knowledge transfer, and the jedi to be so strong for their infinite life and teaching, for there to be no contest between them. The sith should be at a remarkable disadvantage.
I'm glad Rey wasn't a Skywalker. I don't think it makes sense in-universe for force powers to be heritable.
Some great moments throughout, but largely not a good movie.
Also, why did Holdo not just tell Poe Dameron the plan, I feel like that would've made the whole situation way easier. And couldn't the First order just flank the rebels with Tie's? Or send back up to intercept them? Or send their own ships to surround them? Instead of just waiting for them to run out of fuel.... 
Badly written plot.
Felt the same thing - no reason for them to keep their plan it a secret. Nor for Poe to not simply tell people wtf she was planning.
I was hoping the 'twist' would be that Poe was working for Snook in some capacity and betraying them all.
Its embarrassing that the solution to "wow they are fast" was "lets wait several days for them to run out of fuel" instead of "well, we know where they're going - straight - lets do a light speed jump into their path, aboutface, and attack. Oh, and lets scan known-space for any planets just in case"...Yeah, they could have done literally anything else.
Again, if Poe was an inside man, it makes more sense that they didn't want to kill her ... Kind of, ok only just barely, but at least it provides some excuse.
As for the kamikaze - stupid. Again, bad plot. If a ship of a certain size can light-speed-jump through an armada filled with literally dozens of ships bigger than itself, not to mention a ship hundreds of times larger, and destroy the whole thing ... why haven't they been doing that? Math checks out - make light speed ship, auto-pilot, blow up entire armada. Could have an xwing do it instead of the mothership, but whatever.
The series in general seems famous for deus ex machina. Almost nothing happens that isn't explicitly a contrived plot device. I, for one, am sick of utility droids hacking into enemy military tech and/or repairing literally anything with a blowtorch.
Luckily the best parts of the movie were the parts revolving around the force and the sith/jedi, which, tbh, is the only reason I showed up, so at least there's that. The fake-fight was great.