Moving parts are key in any Transformers game, and War for Cybertron is full of them. The Transformers (as well as the planet they inhabit) animate fantastically; they are mechanical wonders that operate with an organic fluidity. During the game, you'll switch between forms for the sole reason of just watching it happen. It's not all great, though. War for Cybertron suffers from some technical problems. I ran into some clipping issues, one of which forced a restart. The framerate is never locked down, and when things get hairy on the battlefield, it often plummets. Thankfully, it's never bad enough to hinder your progress.
Transformers: War for Cybertron sounds great. The voice acting is delightfully campy, and yes, Peter Cullen reprises the role of Optimus. Autobots sound like fist-pumping robotic war machines, and Decepticons sound like sneering robotic war machines. Some voices are filtered; each filter has a special quality that makes it unique. Soundwave's stands out in particular. He would sound like Vin Diesel, but the randomly-pitched oscillations that mask his voice give him that classic Transformers vibe. Most of the music serves its subject matter well enough, though the "let's do this" nature of the heavy rock wears a bit thin after a while.