I enjoyed it a lot, buts its got serious problems.
Rose and her arc was pointless.
Finn got shafted big time. He had very little to do here outside of his one big fight.
Poe also doesn't do much outside of the opening.
The entire casino segment.
Treatment of Luke was disrespectful.
Snoke was cut short as a villian.
Unsatisfactory last battle and ending overall. These Walkers were just for show, nothing happens, much like most of the movie.
I did like the characters of Rey and Ren a lot more though this time round though. I would even call Kylo a good villian and Rey a well thought out character this time round. The action for the most part (whatever little there was) was fantastic and the humour was great. Hux was fantastic too.
To people calling out the ones who complain about unoriginal / too original stuff, you must have never been a big fan of the originals.
TFA is undoubtedly unoriginal and played it safe. Furthermore, Kylo was a weak villian and Rey is a mary sue. TLJ at times feels like a completely different universe. Luke, that you see onscreen is NOT the Luke fans of the original trilogy would have ever imagined.
Hell if Mark himself feels this way, then you can expect many SW fans to feel the same way.