I liked the film - and more the second time around, which is always a good sign. Act 3 being so good enriches everything in the first 2 acts on rewatch.
I’d change a few things:
The score. I’d like to see most of it rescored with ANH/ESB tracks.
Cut as much (ideally all) Forest Whitaker.
I’d replace Vader’s bad pun with something he might actually have said in that situation.
Make a few subtle cuts of Tarkin shots and dialogue. I thought his voice was a bigger problem than the CGI.
The opening 20 minutes could be tightened.
On a different tack, I’m looking forward to “Death Star: The Motion Picture” that someone will now inevitably make.