The Last Jedi started with a very tense emotion, capturing all viewers' attention tightly including mine (I've seen all movie episodes of Star Wars series so this type of scenario should look familiar to me).
This tense and epic feeling filled the entire film, so even it is a bit lengthy, people won't sleep over :) however, the scenes involving Rey and Luke on the isolated island planet look super quiet and mindful. It was similar to the scene in previous episode when Luke was seeking help from the Yoda Master. However, it felt more complex, because never had Yoda been described being evil, not a bit.
One tiny detail that I felt redundant and unconvincing was the reincarnation of Leia Princess. How did she fly back to the ship? As far as I can tell, no reason is given in the film. This lets you suspect whether she was going to be who can command the Force like a Jedi, but well all you can do is just suspecting.
Another critical option that I had to express was about the role of Kylo Ren. He is a complex character, and I am not sure that he believed in until the very end of the story. The climax of this complexity arrived at the scene when he killed Snoke and fought along with Rey, trying to persuading her to come for a new world. But this complexity simply came and disappeared. The story continued in the old way and our powerless always furious Ben Solo kept playing a simpleton role of any typical bad guy. The role is depicted as, adequately complex, but not consistent and lively enough (compared to the former Lord Darth Vader).