So I got around to watching Rogue One today. It's easily the best Star Wars movie since 1983. And I realise what a low bar that is to pass.
The pros: It's not JJ Abrams masturbating furiously over a copy of A New Hope, and better yet it's not George Lucas furiously masturbating over a copy of After Effects. It's shamelessly ripping off WWII movies other than Dambusters! It's pretty as balls! The characters were shallow, but interesting enough (which is acceptable for Star Wars), and the action was very well executed.
The cons: It just sorta sits there in the Star Wars canon. Like someone said upthread, it's the longest retelling of two sentences of the Episode IV opening crawl. The constant references back to the original trilogy went from cute to annoying back to cute and all the way back to annoying again (I almost said 'for fuck's sake' when they included the death of the previous Red Five). CG Tarkin and Leia were good, but they really felt like part of a computer game cutscene.
Overall, it felt like an EU novel, but a really good one. If Wedge Antilles and Corran Horn were in the cast it'd fit right in with Mike Stackpole's X-Wing series.