my 2 year old potty trained in these within 2 days. but they have a few problems; first they are small for their said size. i had to get the 36 month old ones for my 27 month old. so make sure you order a larger size. second, they could have done better with the leg holes; they leak as soon as the kid starts doing a wee. and that was quite a problem for me in my fully carpeted home! they should give you enough time to rush the child to the toilet before they start spilling over. making the leg holes a bit more snug, with more elasticating and fabric, would have made this a 5 star product. all in all they did what they promised but with more cleaning up for me.