As idiotic as the "plot" was, Transformers: Pink Floyd Made Us Change the Name was purely viscerally, eye-poppingly, awesome. The first 3D movie I've ever seen that was a movie in 3D and not a series of gimmick shots during plot lulls. By far, the best of the three. The "twists" were no surprise, and they were actually fanboy friendly.
I swear Micheal Bay must have been channelling his inner nerd as well as his typical pubescent action pervert; the opening 'movie' scene is the typical female introduction ala Bay: a barely covered ass which had uncomfortably (for me in a theater with kids anyway) small underwear on top of it. No joke, calling the female lead "Labia Majora" would not have been the least bit of a stretch. Her panties were so skimpy that the back bulge of her vulva was plainly, visibly, defined. In IMAX, it was actually sort of creepy. I don't care how hot some chick is, I'd like to see some part of her face before I'm facing her primary sex characteristic in 3D from less than a foot behind, but then they are actually fairly subtle nods to Trekkies, the Trans-fans he has previously snottily eschewed, and an attempt at plot.
... so what you get is a movie that starts with awesome historical (mainly NASA) footage re-rendered in 3D with some pretty seamlessly interspersed 'behind-the scenes' plot shots, some really hot chick's cooter, and giant alien robots doing what you'd figure giant alien robots would do on Earth: whatever they want. Leonard Nimoy actually manages to work two of his past famous characters into his role! The 3D was superb and the robot renderings are a generation past the prior movies. If you want a summer popcorn flick, turn off your brain and view Micheal Bay's magnum opus.
