I really don't understand the folks that have wrote all the negative feedback on this. It fits the ipod perfectly, provides support, and allows access to the button which is low on the unit. Sure it could be better with maybe a custom front fit with a carved out spot for the button but it works well as is. Very happy with the simple product.
I found the prior reviews a bit odd given that apple engineered both the device and the adapters. They work perfectly - excellent snug fit against the back wall of the adapter. The extra room between the front of the adapter and the device is so that the device button is accessible.