It's definitely starting to grow on me. When I first saw the raw statue I thought the MkIV and VI were the best designs, and I still do, but the MkVII is definitely catching up quickly. My biggest complaints are like everyone else's - the metallic silver on the thighs. Someone said the rumor is that this suit was designed for space flight, so perhaps the design team added those thigh components and the very obvious booster-looking components on the back reach over the shoulders. As for compliments - I LOVE the new back and I like the new chest piece, the designers were able to add more complexity w/o ruining the overall design.
From a pure design standpoint, it's not my fave, but I'm quite sure that when the movie hits and this suit shows its capabilities and how those silver components work into that, this will be THE badass armor to own out of Tony's collection.