-As fun as the Vader scene was, it did feel like fan service that was tacked on. And boy, did this movie have a lot of fan service in it.

-I will praise some of the action but only to a certain extent. The final battle had some good sequences Gareth Edwards showed off his sense of scale when the AT-ATs first showed up. Despite that, I was not connected to the characters so the battle was not as affecting as it could have been. However, the city battle in Non-Tatooine had horrific editing. I found it difficult to tell what was happening in that city battle. Also, they need to stop doing faux-Tatooine planets, give us something different.

-The biggest flaw that I had was that Krennic was an extremely weak villain. He actually gives Joker from Suicide Squad a run for his money. He accomplished nothing in the film and is nothing more than a minor inconvenience at the end of the film.

-Since you brought up Saw, I do have to agree he was way too over the top. I actually found it hard to take it seriously. For a film that was trying to be gritty, I found it a bit silly.

-I did not mind Vader's quips in the film since he was a bit sassy in the original trilogy as well. Also, you have to admit that was a nice pun.

-I fully agree about the main cast of characters being extremely forgettable and boring. Have to admit, that I found K-2SO to be my fav character by the third act since everyone else was dull as dish water.

-You mentioned lazy scenes and I have one in particular that annoys me. The rebellion betrays and basically uses Jyn to kill her father(and almost her as well) and then a few hours later she's giving a rousing speech to the same rebellion. She completely forgets about what the rebellion did to her a few hours earlier.

-I did not mind the lack of a Star Wars crawl since it was trying to be its own thing, for better or worse.