Abrams did his research, he saw all the TOS episodes and movies, and even read some of the novels.
STVI is an example of a did-not-do-research movie. The characters are treated awfully and the entire plot contradicts "Yesterday's Enterprise". If you've read co-writer Denny Martin Flynn's novel sequel The Fearful Summons
you'll get an even better idea of how poor their grasp on the characters were.