Assessment in Brief: A good movie worth seeing in the theater and definately worth purchasing when it comes to DVD.
The Good - Better characterization of the humans. Interesting storyline. Great new human sidekick. A good look at the Decepticons.
The Bad - The storyline doesn't exactly flow from the first movie and feels a little contrived. The humans are still the focus of the movie, not the Autobots.
The Ugly - The Twins. Awful characters, saved only by the fact that they're okay as comic relief and the other characters hate them as much as the audience does.
The Awesome - Optimus ROCKS! Excellent fight sequences. Characters easy to empathise with. No Rodamus Prime.