I saw this in 3D last week. Went to the theater by myself after the family went to bed.
Taken with the grain of salt that is the reboot series; I really liked it. Its probably the best of the 3. The plot plays out like a solid episode of the show would. I like that it takes place during year 3 of their 5 year mission and all the characters gel nicely without the conflict and "getting to know you" stuff that was in the first two. It felt like a star trek movie with a 2016 treatment where as, IMHO, the others were sort of crazy action movies set in a Trek universe. Not to say this wasn't all action. I saw the new Jason Bourne movie too and honestly, think Star Trek was more action packed.
I give it 8/10.