I started using Gerber training pants when my daughter was 20 months old. In a few days she was good with training  and stopped liking any diapers. By the time she was 2 1/2 she got completely potty trained. Also she started wearing these in the night too. It can hold pee if its  a small one. It would leak if it was a big one. I love those and used for a very long time. I couldn't compare this with any other brand as this was the only one we tried.

I feel they should have made bigger ones too, up to 6T. Once in a while when there is an accident in the night now(she is 4 now)I miss these.

I would recommend buying the next size as I found their suggested size small. Gerber training pants were  our  true potty training buddy.