I understand that a lot of people don't like this film and say it doesn't make sense etc but I think that if you are someone who reads the books and comics and has watched pretty much everything to do with star wars you will understand that actually a lot of it does make sense. Take palpatine being alive for example, we have seen sith do this before such as the one they simply called "the emperor of the sith" who was practically immortal and could transfer his mind into others (basically how palpatine is). Besides this I belive that the film itself were good and that altough the ending was somewhat inconclusive I believe it shows that there will always be light and dark and that ultimately we will always go round in a circle repeating the same process over and over. Plus (spoiler alert) rey having all of the jedi talk to her and basically help her win was cool and so was the rebel fleet coming out of nowhere.