I'll keep this short. Know this going in: I'm an avid Trekkie who loves all of Star Trek excluding DS9 and Insurrection. I was a purist of canon and am no longer.
Star Trek is simply the best Star Trek film of all 11. There are only a few minor faults (coincidental encounters with various crew members and not enough Nero, but the comics covered that well).
Acting: 10/10 Top notch stuff