Hmmm...
The only thing I hated about this movie was Jazz's death.  Not that it no one should die, but that the "Black guy" was the only one killed... I thought that was pretty weak of them.  I thought we were past that in Hollywood... oh well.
Anyway, things I did not like:
- Lack of Emotional connection with the Autobots... there was no brotherhood... there was VEEEERY little "Autobot culture" there was a lot of comic relief stuff, but it wasn't until the end that I got a clue that these guys had real heart.
- Too much tell-not-show about Cyberton.  The lore is important, but if you have compress two-three major storylines into an introductory paragraph, rethink your approach.  
- Hanging around kicking it ending.  I'd much rather have seen clips of the Autobots integrating into day-to-day earth life (as vehicles) than standing around on the cliff with the make-out squad.  Bumblebee was going to stay with the boy, not everyone.  Send them off somewhere, the seemed... impotent in that moment, despite prime's posturing.
- Barricade as not resolved, though, presumably, he and Prime got into it before Prime arrived, cuz that guy SUUURE took a long time.