I really want to like this set, but the proportions in the combined Bruticus mode just bug me for some reason. The legs are ok, and the Vortex arm looks pretty good; but the Blast Off arm looks a bit too long to me. The torso looks a little too small in comparison to the limbs as well. I think this guy would look much better if they had just bit the bullet and made Onslaught a voyager to help bulk out his torso a bit.
Maybe I'll like this better once I see a few more reviews of the set and grab the retail version (the colors really don't bug me).