I got a snes classic, and it's pretty cool, I love the interface and the general intuitive nature of the controls etc, something very "nintendo" about it, they have always had a great user to application interface. I don't know what emulator they are using in the backend but it's ok for most games, not all work perfect, but a majority work flawlessly I feel it's worth the price to hack and add your own roms into.
Sony on the other hand has made great looking hardware but the interfaces have always been a little to be desired in my opinion. I am going to wait on getting the ps classic just to see the interface, if I just wanted pcsx-rearmed in a shell with a 'just ok' interface I'd build one myself out of a raspberry pi or something.