I saw it last night and I did enjoy the experience. I can usually turn my brain off with most things and let myself enjoy them, which was what I went in trying to do. I had already had my expectations lowered based on what
GodBen and
NCC-1701 had said, because I know their tastes, combined and averaged out, are generally the same as mine. After I'd learned the movie was being made, I was already wary of the idea of a prequel - ENT having soured me on the subject - but was a little happier when I realized it was a reboot in prequel's clothing. Then, I was a little annoyed that the production seemed to be trying to maintain ties to "old" Trek while still rebooting.
So as the movie began, I was really awed by the majesty of the
Kelvin streaking into the scene and I got (surprisingly) appropriately misty when Jim Kirk was born and the
Kelvin exploded. I liked seeing the juxtaposition of Kirk and Spock's two different "paths" even if Kirks felt a bit cliched. So anyway I was hooked at the beginning, but from there it seemed to become really predictable, even cliched, even ignoring the continuity gaffes/mistakes. Kirk's meeting of Uhura, Pike, and McCoy worked okay for me. The way Kirk beat the
Kobayashi Maru seemed... off, somehow. I think this was a missed opportunity to show us that nuKirk is more old Kirk than we might have expected, by having him beat it in a specifically Kirk-like way. (Have him bluff corbomite, for example.) But having Spock be the one who programmed the simulator was pretty interesting, even if having Kirk and Spock hate each other over this was a bit stupid unto itself.
From there on, it was mostly rehashed cliche for me. Everyone meeting everyone, the
Enterprise being the ship on-scene, the mostly-cadet crew being recruited to pilot the new ships because the fleet was elsewhere, Prime Spock conveniently being on Delta Vega where Kirk was ejected... Scotty being there... Scotty's alien sidekick... having to go over to the
Narada. The ending felt the most ridiculous of all to me. Kirk being promoted to captain didn't bother me at the time, but the tone felt very tongue-in-cheek. I couldn't help but think of the ending of "Galaxy Quest" where the cast has a new TV show and they have their introductions. That's what the end of the film felt like to me.
Just watching it and not thinking about it, I did enjoy it. But thinking about it now, it feels like a nostalgic rehash of all the previous movies rolled up into one and dressed in TOS window dressing. So much of it felt just unnecessary. In any ways, the dialog, sets, and production overall felt very generic. The bridge seemed like some actors in Starfleet uniforms had gathered on a set left over from one of the Star Wars prequels. (Don't get me started on the production design. Yet.)
I know that the franchise was due for a reboot, and Orci and Kurtzman did a relatively good job (at least as good a job as they were capable of) with what they were trying to do - I can't help but feel much of it was purposefully tongue-in-cheek, playing off our expectations of what the "Prime" crew was like compared to the cliches that were the nu-crew, while using those cliches to make the franchise accessible for a new generation. Overall, if this was the intent, I think it was a mistake. I think that trying to reboot the franchise while saying that this was just an altered timeline was a mistake. (As most of you know, I'm not a fan of "having your cake and eating it too."

) I'd have, in many ways, preferred a critical reboot that in no way acknowledged TOS, beyond being a reboot of it. I think a few rewrites could have strongly helped this movie as it was, though. I'm not sure how many it went through, but I don't think it was quite enough. Even a few revisions of simple details would have made me happier. A character writer should have been brought in to help flesh out the characters and dialog, in particular.
I'm reasonably sure that the franchise is no longer on life support thanks to this movie, but I've not yet decided if that's a good thing.
So, the movie was enjoyable, but not great.