Since we live in a small house I didn't want to use a training potty at all, but came across this one and decided it was small enough. I loved that it could be used on it's own or as a seat on the regular toilet. My oldest caught on to the potty training soon after I got this out and it was so low to the ground that it made it easy for her to use it by herself. The liners that you purchase for it are convenient, but in a pinch I've used a plastic sack with a paper towel in the bottom. I never did travel with it, but was glad that would be an easy option.