I am usually skeptical about prequels, but this second of the new Star Trek movies is very true to both the Star Trek saga and the characters we've become familiar with.
There is tons of action, and plenty of outstanding special effects, expertly woven together with the story line, which is the Enterprise crew's pursuit of a former Starfleet officer who is now targeting Starfleet. A couple of times during the story, the issue of doing what is right vs what is logical or mandated by rules was addressed and added to the depth of the story.
The characters are very well portrayed, especially Kirk (Chris Pine) and Spock (Zachary Quinto). The actors are a natural fit for their roles. I especially enjoyed seeing how the characters come to bond with each other.
I won't spoil any details, but they do tell the history of a couple of characters and events that occur in later Star Trek episodes and/or movies, so true 'Trekkies' will appreciate that aspect.
An excellent movie..don't miss it!