This film is way better than Dark of the Moon. (Which of course was way better than Revenge of the fallen). Their is some humor but that is not what drives this film.
The story is very different from the previous films. The story pulls from Generation 1 and Animated as I had suspected. But the humans in this film are much more grounded than say Sam or his parents. Cade really stands out in this film and to be honest made it enjoyable to watch.
I can't say much about the Autobots with out giving away spoilers. But I am going to say one thing. The Triplechanger was a nice touch.
Over all I had fun watching this film and have to go see it again.