I used that for Zoe when she was younger. I would still probably take a pair with me if we were visiting. I will say that the hole for her tail was a little too big so if she pooped... it would still wind up on the floor
but she didn't really like going with it on so it did help with housebreaking but you still also need to be consistent and take her out a lot otherwise she'll just get used to going in the diaper.