A lot of people consider this to be the best of the Star Trek movies. I do not count myself among them. It´s not that I dislike it in general it´s just a lot of little things I personally didn´t like that add up. The idea of again having an alien probe coming to earth. The method how they bring the message in this part feels like delivered with a hammer. Normally I percieved Star Trek to be more subtle in that regard.
I´m all for humor in a movie and there were some really great funny scenes but all in all it´s too much. And than there is the part of messing around with the past.

Time travel is always a great tool in SF but I often wondered if there where budgetry reasons involved. After all it is less expensive putting the movie in the (then) present. Alltogether as I mentioned not bad in general, but it always felt to me being just a movie and not a Star Trek movie.