I have it! I bought it to train my puppies on! I'm a believer! I'm amazed at how well they are doing with it! I think it's better than pee pads as it looks and feels different so they haven't gone on my rug at all thinking that it's a pee pad. At 6 weeks old, loose in my living room, they go over to the grass and go there. I think maybe they are exceptionally smart as well!