I was a little skeptical of whether our puppy would be able to use the paws2go since she was terrified of the hanging bell system we tried first. It took her one treat placed on it to figure out how to use it and she has been using it ever since. We love that you can record any sound you would like. We used a voice recording at first and then changed it to a ring tone. I would highly recommend the paws2go!! In the time we have been using the paws2go, our dog has never had an accident in the house because she always has a way to alert us she needs to go out.
-Beth & Lucy