We knew this day was coming, and to be honest, Honest Trailers gives a fairly competent overview of Rogue One's failings - now that the hype has died down somewhat.
As you can imagine, the unused shots from the trailers play a big part in Honest Trailers' breakdown, as does the fact that K-2SO was the best character in the film and the whole thing with Stormtroopers missing every available chance to shoot Chirrut Imwe when he was doing that walk through the beach.
You've also got the fan service references, the whole Tarkin / Leia thing and all the beautiful cinematography in there as well - so it's not all negatives, as well.
Take a look.
Via YouTube