Ok, so… just watched it.
First things first: the leaks were all true.

And I’m really sorry to say that I was sooooo disappointed by this movie.
Being very respectful of other people’s opinions, here are my own.

This is the saga whose main character, or at least the character around whom the plot rotates, is Anakin. He sacrificed himself to kill Palpatine and bring balance. Six whole movies to make this story. When they announed Palpy’s return, I was kinda happy because I was sure that Anakin would have returned aswell, at least as Force Ghost. But nothing, niente, nada. Just a voice. A voice! So the whole of Episode VI is nothing. Anakin died as a fool he didn’t bring balance to anything, and he didn’t do anything to re-kill Palpatine. The Chosen One prophecy is bs.
At the very least I was sure that they would have explained how Palpatine survived. When we enter DSII we see dead Stormtroopers. How did Palpatine manage to survive? Who brought him away? Nothing is explained. Nothing. He is just attached to the life machine… he moves, he speaks, so he IS alive. HOW in the hell did he do that?
Force Dyad… not explained. At least, I didn’t understand it. Two Force-sensitive beings together become stronger? That’s it?
The final kiss… like a pink comedy. Rogue One had a WONDERFUL ending, with Jyn and Cassian clearly being infatuated. But they just hugged each other and waited for death. Perfection.
The title… the most boring and obvious meaning. Rey who takes the name Skywalker. That’s all. Nothing from Luke, Leia or Anakin.
Palpatine’s death is just ridiculous. First, in Episode III he didn’t die because of Force lightning being re-directed at him. Why does he die now? Plus, the whole “I’m all the Sith!!!” VS “I’m all the Jedi!!!” is… is… you choose the words.
New characters are not-existing. At the very least the so-much-hated Rose had some background in TLJ (her sister). In this one… Charlie from Lost is a plant. Jannah is totally useless, the new droid is forgettable.
They all said for months that this would have been the ending for the whole saga. But there is NOTHING from the prequels… and I didn’t even hear anything in the soundtrack (not Duel of the Fates, nor Battle of Heroes, nothing).
The Skywalker family has become a joke. Anakin didn’t do anything. Luke didn’t do anything. Leia didn’t do anything. It was a Palpatine who brought balance.
So… Palpatine had a son. When? With whom? And why? It sounds like the whole Cursed Child storyline. Both Voldemort and Palpatine are characters who are not supposed to have any offspring, because they both tried to achieve immortality.

The Last Jedi was coherent, wether people liked it or not. This one was two hours and half of them saying “TLJ didn’t happen. here, look at palpy and be happy”.
There are of course things I liked. Lando is so cool. Babu Frik is funny. Williams score has a couple of very good moments. And the whole fleet arrival is just great.
But except for these aspects, I was disappointed.

Last thing: I’m not classified as a prequel hater, sequel hater or original worshipper. I just judge the single movies. My favourite in the saga is Episode V, followed by Revenge of the Sith and A New Hope at second place. Then there’s The Last Jedi.

EDIT: the writer is the same guy who wrote Batman V Superman. I mean… he also wrote Argo, but I found this movie more similar to the first one than to the second.
EDIT2: I will edit this movie as soon as possible. The title will be “The rise of Palpatine”. It fits way better IMO. Before watching you are supposed to be afraid, because it means Palpatine is returning. After watching it, you are happier, because the Palpatine who rises is Rey. Even though she takes the Skywalker name, she is a Palpatine.