I have those!! My MIL bought them for us, and seriously, they saved us several times! They get completely soaked, but you don't get sprayed in the face! I think she even took a Pee Pee Tee Pee picture - I'll have to try to get a copy of it! (They're washable, too!)
They're only good for newborns, though, when they just lay there. But they do work!!