I received my copy in the mail last week, and have listened to it a couple times, to and from work.
It's not too bad, playing it loud in a confined space, so that the stereo affect really makes you feel like you are among the orchestra.

The tracks themselves are very repetitious, with most incorporating the main theme music from the opening credits (during the first part that shows off the Autobots).
And the beginning of that main theme is virtually identical to the the music in that scene in the 2007 Movie when the Autobots first arrive. The strings bit leads into the wind instruments, and just as it starts, you can pause it and visualise that scene and its music.
Other music bits were also inspired by the Scorponok scene in the 2007 movie, so this composer was either asked to mimic the Movie sound for familiarity of viewers, or was too inspired by it to be able to think up something new.
A little disappointed by the lack of range (considering there are 25 tracks on the CD), but isn't too bad for driving music.