If you are one of the last ones you haven't heard of it watch the trailers here: http://trailers.apple.com/trailers/paramount/transformersdarkofthemoon/
It starts with some flashback from the time when the US first landed on the moon. And to be honest this movie fulfills a lot of clichés but that obviously is Hollywood.
Back to 3D:
There where spectacular fight scenes and one my favorites is the car chase on the highway.
I think the virtual world is brought really well into the real movie world. Textures were awesome. I loved the style of the Decepticons they had an evil bio-organic-robotic appearance.
After all I was very good entertained you get what you can expect when you watch a scifi-aliens-roboter-action movie…
And sometimes that is just awsome….