The beast mode looks nice enough, but I'm not a super fan. His legs can't bend, so he looks like he's always on his tippy toes. He exists for the transformation, which almost never works very well. You can barely see the transformation while you're doing it because of the motion. And the robot mode doesn't look very good. It's extremely gappy and the proportions, especially on the legs, are really off. Not recommended. Here's the video review of it.
He looks okay to me. Just not a fan of those colors for Grimlock. More traditional colors or repainted as another character, and I may be interested if it were on sale.
Does this guys feet turn at the ankles? Because if they do, then you could turn them around to give him his pointy elf feet in robot mode.