SPOILER ALERT
I saw it this past Monday.
Pretty solid movie. Good effects, okay story, and it's fun to see the characters when they are young. Nothing earth shattering, but fun. A summer flick.
Karl Urban who plays McCoy is great- easily the best cast member. I thought they guy who played Spock was terrible, and nearly cost me enjoying the movie. Plus, the bad guy (Eric Bana) is not very good. Needs more Simon Pegg.
There's also a lot of time travel going on which really makes it Star Trek 11, not a relaunch of the franchise like Dark Knight, etc..
I saw it on an IMAX screen. The better the theater the better the movie will be for someone who checks it out.
You can walk, not run to check it.