Major spoilers, enter at your own risks

Rating: 2/10 (19 December 2019)

1) Leia was a Jedi, trained by Luke, has a light saber of her own but it was never shown with her, later was given to Ray by Luke (force ghost). In this movie Ray was trained by Leia.
I don't think that was planned from beginning. Otherwise why did Ray seek Luke in the first place? Couldn't Leia have trained her from the beginning?
2) There was no explanation how Palpatine came back, other than "dark side has many abilities".
3) Ray is Palpatine's grand daughter, which from what I see it, quite hard to explain considering just how old Palpatine was.
4) In this new movie Palpatine asked Ray to kill him so their spirits would merge. And Palpatine was the merged results of all Sith. Ray refused and Palpatine regained youth and strength by sucking the life force out of Ray and Kylo (That is new). Ray defeated Palpatine by channelling all Jedi (think witches in "The vampire dairies").
5) Ray immediately died afterwards (exhausted from the channelling?). Kylo revived her, Ray kissed Kylo and Kylo immediately died afterwards with a smile on his face, seem to be the consequence of resurrection. The whole thing felt arbitrary.
6) Palpatine had an entire fleet of planet killing star destroyers, but they all parked in close formation without shields, so they were just sitting ducks. I can not think why they were not properly deployed.
7) Force ghosts in this movie can hold light saber and lift aircraft, so I don't know why all the Jedi force ghosts did not gang up on Palpatine and did nothing to the first order.
8) All Skywalkers died in this movie. In the very end Ray found Vader's uncle's abandoned residence, seemed to want to settle there (not opening Jedi academy or anything), and changed her name to Skywalker, probably ashamed of Palpatine heritage.
The entire movie felt empty, corny and ridiculous.