I was a little hesitant to buy this, because when you're dealing with dog pee there are really no guarantees. We have a tiny pad-trained chihuahua rescue who we've been unable to get to go outside. We live in the city and it's too noisy and scary for her, no matter how many things we try. Inside, we'd been using a plastic tray with normal pads, but she would only go on them once each, twice if we were lucky. We were going through about 3 or 4 huge pads every day, plus tons of paper towels because she'd always miss.We have gotten it down to a science with Brilliant Pad, so there are virtually no misses. It is raised off the ground, making it harder for her to miss/pee while walking. She knows to look for pads and Brilliant Pad is smooth, so I place a little square of paper towel onto the pad, which she innately knows to aim for. We place it on the side that is close to the power/where the pad disappears, so we are able to roll away only a few inches each time she goes. We only go through a full length of the pad about every day. It is so much easier, so much less waste, and virtually no smell or cleanup.I can see how larger dogs or puppies might have issues getting used to it, but it couldn't be more perfect for our little adult chi.