I have to admit I'm a bit nervous about some of the plot holes and story problems people have hinted at so far, but then I didn't have much issue with those in the previous movie (except perhaps for the supernova destroying Romulus thing) so I think I'll be okay here too.
Once I thought about Praxis, I didn't care...
Ha, no kidding. There's much to love about TUC, but the way the entire story hinges on the most ludicrous idea possible-- that the vast
Klingon Empire would be completely crippled by the destruction of one planet or energy facility-- makes the plot holes in the last Trek movie seem almost trivial.