The colors are mostly all unnatural.
The score was forgettable (everyone can hum starwars, raiders and even the star trek tv shows music).
The new Enterprise set looks too clinical.
The Kirk/Spock goodbye scene was way way too corny.
McCoy said, "I'm a doctor not an Engineer" too many times. I thought he said it three times in the movie. If not then maybe the way it was used made it feel that it was too much.
And the new transporter effect was too drasticly changed. The changes seen in the other movies were okay because technology advanced. This movie is still in the days of young Kirk and Spock.
I just saw the movie the 2nd time and would like to change my review from a C to a B. None of the complaints above bothered me the second time except for the corny kirk/spock goodbye scene. I will see it one more time before it leaves the theaters and I predict finally giving it a B+ after the 3rd time.