Minor flaws, but 9.5 of 10 stars.

Rating: 9/10 (23 May 2013)

MAYBE 9.5 of 10 stars.
Expect it to gross a third to a half of a billion dollars.
Some will miss:
1) Foreshadowing Sulu's promotion to Starship captain (ST-VI & the books).
2) Klingon body piercing.
3) Lawrence Livermore Fusion Tokomak used for engine room scenes.
4) Kirk's a bit too outside-the-box for the chain of command. They tell him. He starts to listen.
5) "Death of the mentor" a standard scene. I really liked this character.
6) Uhura kicks ass. Spock's ass kicked verbally then Khan's kicked literally.
7) Scotty takes a stand. This makes making him available to save the day. Too convenient perhaps but it works.
8) Pavil Checkov, 17-year-old boy genius, shines. Then hits his limits.
9) Kirk admits Spock is better for command (right now).
10) Actual space images for exteriors.
11) Life-limiting diseases still a problem in 200+ years.
12) Architecture both beautiful and believable.
SEX: Bechdel Test of gender bias in fiction: FAIL (look it up).
Someone on Wired.com's payroll quibbled about "a totally gratuitous" flash of female hotness. Ah... NOT.
Attractive females in various portrayals and undress are 100% vital to all forms of drama. Not just SF. Vital to viewers both gay and straight.
The few who don't appreciate showing Alice Eve (Dr. Marcus) in her undies include certain graduates of University PC Conditioning Programs who haven't yet figured out how badly they've been cheated. Cheated of an education that includes something resembling a useful skill.
Said scene hits the humor point that this Kirk at this time is 100% Lothario, hustling every female he comes near. Kirk overnights with two lookers not necessarily of his own species and still he hustles.
Not PC, but funny and 100% in-character. Don't forget that W.J. Clinton and J.F. Kennedy shared this leadership aptitude and playboy appetite.
Early in the Klingon confrontation, camera POV is from Zoe Saldana (Uhura's) thigh-level showing inner-thigh gap and where they meet. Gratuitous? Absolutely. But in the darkened theater, alone with my fantasies, I liked it.
Nits (in the spirit of making the next movie better / stuff problematic for me):
1) UFP Starships don't go underwater. Shuttles maybe, but even a (second) shuttle need not be a part-time submarine. Just park it in low planetary orbit or fly racetracks high in the atmosphere. Same plot/mission accomplished without straining credibility too far (for my tastes).
2) A planetary extinction level event (ELE) volcano is possible in science. Needed for dramatic plotting? Meh. A culture (oddly resembling the humanoids from Prometheus) living on its slopes is in enough jeopardy. The science and drama of this part were twisted - as was the solution.
A device that can quiet a super-volcano is a tough sell to my formal / self-eduction. Red Matter from the prior movie is an instant black hole, not a heat transfer (refrigeration) unit. Such a refrigeration unit, even in the Rodenberry-verse, would probably be a lot bigger than a bowling ball. It would need to be capable of sucking up a few hundred megatons of thermal energy in a few seconds. Just saying.
A better plot solution with accepted Rodenberry tech could involve transporting the people their structures and the things that they make to a safer place Do it while most sleep. Such a move would certainly make an impact on their culture, but perhaps less than a Starship breaching the nearby sea. Survivors would have legends, but they would be of an awakening day not including a tribal artist drawing a very accurate picture of it.
3) Why use totally inadequate-looking dish thrusters to stop the Enterprise's crashing descent through Earth's atmosphere? Early in, we see anti-gravity well established and a no big deal tech. Full-ship Anitgravity, previously used in the opening scene and probably offline till the last possible second, could have been sufficiently dramatic and nicely visualized with disturbances in clouds and air. You could even get close to the Earth and smash a few square miles of trees Tunguska-style.
4) Abrams has Starships hit warp drive fairly close to space docks. We were previously told that this is a bad idea. Something about Newtonian actions and reactions was implied but not spelled out.
I do like the new visualization of warp energy wakes.
5) General Marcus having a Dr. Strangelove meets Al Haig messiah-complex is a rather tired plot angle. Too PC. I'd like to think there's a better fitting motivation for an antagonist, but I may be wrong.
6) High-level, high-value military men are having a regulation-driven meeting when they come under surprise attack. They can't beam out of the secure conference room instantly? Are you kidding me? If transporter tech were available today, no such meeting would take place without the bug-out coordinates wired to a panic button in each and every conference chair. You could still have the mentor fumbling with his cane and that taking too long leading to his death. Kirk on counter-attack could be similarly plotted. My second biggest nit.
7) Khan has "Magic Blood" with any number of wonderful properties. It saves a sick little girl and a 100% dead Tribble. McCoy wants some more of it, so he orders that Khan, be captured, not killed. Set phaser on stun. WHAT? Meanwhile Khan is rather busy causing all sorts of death, destruction and miscellaneous mayhem.
McCoy has forgotten that there are 72 Meat-Popsicles aboard the Enterprise, each with similar magic blood in their veins.
Another fan found these nits:
1) A re-animated Tribble doesn't move off the table where it was revived, despite the passing of time and the ship being shaken around with some vigor.
2) Artificial Gravity that fails under attack make sense. The portrayal here does not.