I have been using Doggie Lawn for over 3 years. It was very easy to train both of my dogs. I live in a condo and I keep it right outside my patio door. There's no getting up at 6:00, getting dressed, walking quite a ways to the elevator, then down to the back of the building! It's so easy to change out the used one to the new one. They even put a pair of plastic gloves in the top of the boxI I love that! And, I tell everyone I know about how great it is. Thanks, Doggie Lawn for making mine and my little gs life so much easier!