I think it's telling that after a week I'd seen TFA three times, whereas I really can't be bothered going to see this one again.
I'd hoped that I'd get happier with it as I've had more time to digest it, but there's just so much of it that doesn't sit right with me.
Rey's origin, was an interesting turn to take, but after all the build-up and teasing in TFA I'm left wondering what the point of it all was. So many people saying it's a middle-finger to fans that are trying to figure out who she was. Yeah there were those fans, but when TFA basically posed those questions I don't think it's a good idea to go "Psyke! She was no-one all along! Nerds!"
I still have fundamental problems with Luke and Kylo's backstory. It just doesn't work with the character as I know him. I've no problem with him being a grumpy, isolated hermit who's cut himself off from the force, but that whole "murder in the night" element was just wrong. If they want that to be believable they needed to do a hell of a lot more background beyond "I was training some Jedi. Kylo was going to turn bad so I decided to murder him".
Casino section didn't really bother me. What did bother me was that if you removed the aliens and droids it could easily have been a set from a Bond movie. Black suits and ties? Say what you like about the prequels, but the Opera house scene with Anakin and Palpatine gave some idea what the rich and powerful wore. As it was it just looked too earth-like.
Poe's "arc" on the ship was bollocks as well and totally negated the point of Finn and Rose's trip in the first place.
Lightspeed battering ram was a cool visual, but as with someone earlier, I also wondered why they've never used that tactic before if it's so deadly. "We need to take out this massively armoured section on Starkiller base. Shall we create an elaborate, tricky attack with X-Wings that will cost us a lot of pilots and might not even succeed? Nah, just shoot a ship at it at light speed, that'll do the trick." That's a nit-pick though and it's so easy to look at other parts of the series where they could/should have done that in hindsight.
Then there was the "humour".
Star Wars has always had it's jokes and it's funny sections, but the humour here was tonally so far off the mark. Poe's "conversation" with Hux was cringeworthy, Luke throwing away the lightsaber, Finn wandering around with the bacta-suit squirting all over the place. I'm sure there was more but my god it was awful.
In a lot of ways I felt it was just really disrespectful of what's came before it. I get that it was about clearing the slate and getting ready to move on, which I'm happy for them to do, I just don't really like some of how they've carried it out.
I like the actual story that they're telling and I did enjoy TLJ overall though, despite some of the big issues I have with it. I'm interested to see what's next and for once I don't have a clue how they move on from this.