Actually, my Mom got the Poopouri from Amazon , havent actually taken it for "test drive" but it smells better and you get more for the same price as the VIPoo. VIP is made by Glade and sold at the market where we played with the tester.
Like I said, cant say how well it works cause my Mom bought them as "gag gifts" for x-mas. The Poopouri has some great names, such as the manly scent called "Trap-a-Crap" it actually is really nice smelling.