Got my black one in today.
In short: it's awesome. Beautiful feel to the plastic (kind of a satiny soft touch), and the aluminum panel feels nice (and looks to have a pretty durable finish). It's also got a very fine pebble texture, such that it feels smooth, but doesn't leave fingerprints. Fit is perfect. Snug and everything snaps in wonderfully. I don't think it would work well if you had any skins on the back and sides...the fit is too perfect to take that extra thickness.
Nice surprise: While the whole screen surface is visible, the side do come up very slightly past the screen, so it looks like it's a flush case, but if you set it screen down, you won't be putting it on the screen (still, the clearance is small, so don't set it down on anything except smooth table surfaces face down).
If anyone was concerned about the metal on the back, there appears to be absolutely zero affect to signal (field test showed absolutely zero change in signal in or out of the case, and wifi is also not affected, since the metal doesn't cover the windows.)
Overall, it's the finest snap case I've used.