Saw it last night at midnight release.
The first act was rough because it was setting the tone, and being Star Wars it took some time to adjust. But once Jyn arrives at Yavin I was set. Then I just sat back and enjoyed one of the greatest things I've seen of recent years. This is probably my 4th favourite Star Wars movie overall but that doesn't mean much when I love 5, 6 and 7.
Darth Vader's Castle, his hallway march of destruction, the space battles intensity. Loved it all. At first the CGI Tarkin was a little off but thats just because it took me by surprise. I'm sure after a watch or two it'll be fine. I felt Cassian was a little lacklustre but all other members of Rogue One were funny and sympathetic. Krennic was menacing and the talk about world, just here and there, were so heartwarming.
Go watch it. 9/10.