I buy Pull-Ups for Jayden, but I don't think they are doing anything for his toilet training. As Kathryn said they are just like nappies, only thinner.

He is more interested in Buzz Lightyear that is on the front then actually using them like underpants.

IMO I don't think they are worth the money. $15.95 for 17(but hey, I still buy them). I think they would only be beneficial if used when a toddler is very close to being toilet trained & used for the occasional outing.