Gorgeous phone on paper. Nearly got one until I read the reviews at the time, which were okay but not great. The camera supposedly wasn't very good, but I don't know if that's a result of the bezel-less design, a cost cutting measure, or both. At least the price came down on the Crystal significantly, though, over time. It wasn't expensive at launch ($150 with a contract) but hard to justify versus the competition unless you really liked the look.
I'm sure some manufacturer will get the nearly bezel-less design without compromising specs, durability, and ergonomics, but it hasn't happened yet. The Crystal was more a showcase for Sharp's design chops than their ability to manufacture an excellent smartphone, but part of the problem was that it didn't get much marketing here as a mid-range phone. It didn't help that it was a Sprint-only phone here, either.