First of all, I was sent a replacement (a soft cover) after asking where the Crystal case was at the end of the delivery estimate, and only received the actual product two weeks after the delivery estimate. But when I got the Crystal case I was very disappointed in two ways. First, its obviously disappointing when the replacement sent is actually better than the actual product. And secondly, the product differs from the picture (which now seems to have been removed). The picture showed that it covers everything except the buttons, sockets, the touch-screen and the cameras (a small hole for the front-facing camera). But, instead, you get a cover that protects the back. Nothing else. On top of lack of protection, it looks like that if it was dropped, the ipod will just fly out of the case (not going to test this).
I've decided its not worth returning it seeing as it was £3, but I'll be using the replacement case (which is only a little bit better, 3 stars for the replacement case).