It has so many plot holes, and there’s so much luck involved for the rebels.
Why haven’t we heard of the emperor before now? His son or daughter would’ve been an amazing Jedi, why aren’t they heard of? Why can’t C-3P0 do the one thing he was programmed to do? The list goes on and on.
As for the luck part, it’s way to convenient that when Ray, Finn and Poe fall into the pit, they happen upon the blade that gives them the exact coordinates to where they need to be, and when they’re stopped by the massive snake thing, Ray just heals it and it reveals the exit that it was sitting on.
The whole movie is awful and doesn’t connect to 7 and 8 at all.
2/5 only because of the amazing visual effects.