I started to get a little disgruntled once things moved to the final planet and I realized everyone was going to die.
Gripe #1: Everyone dies. Dafuq.
Gripe #2: It doesn't mesh as well as I'm sure they think it does with A New Hope. Leia is a member of the imperial senate. She is a senator, full stop. She's PART of the Empire. Her role in the Rebellion is one of subterfuge and feeding information. It's stupid to have her on a ready-corvette (which was not deployed in battle...?) in the middle of a battle. Second, in the opening scenes of ANH, Leia's ship is operating under the pretense that it's on a diplomatic mission. Pretty hard to pretend they were doing that when Vader literally fucking saw them run away. I mean, I guess they could try anyway, but it just strikes me as stupid. They tried waaaaay too fucking hard to link back to the OT, and bungled it in the process.
Gripe #3: Everyone dies. What the fuck.
Gripe #4: The movie wasn't about people after they went to the data storage planet. What made the OT so great was that it was about Luke, Leia, Han, Chewie, the Droids, and Lando as they got over their own personal shit to become leaders in the Rebellion and brought it to victory. What made the Prequel Trilogy so annoying was that it was about Anakin becoming a whiny bitch and killing all his friends in a fit of teenage angst. Once they get Rogue One assembled, the movie becomes about hope. Yay? I wanted to see the characters go on to become badasses or something. Instead of character development, we got a CG Leia saying "Hope." This is why, I think, the movie left me thinking "That was fun but I didn't really like it."
Gripe #5: EVERYONE DIES WHAT THE FUCK. Like, okay, I get sacrifice and whatnot. That's cool. But here's the thing: Rogue Squadron was this badass squadron of people too weird and problematic for the normal Rebel squadrons. They made themselves a home fighting for a cause that was uncomfortable with their help. It became this prestigious squadron of mavericks who got shit done even at great cost. We kinda got that, for a while. And then everyone dies and now it's over. Fuck that. Sure, lots of the characters SHOULD have died. But we needed at least one left alive for the squadron. Nope. Fuck off nerd, that shit's not canon anymore. Ugh.