I used it for Natalie and found it very helpful. I'd say by day 3 she was 85% potty trained. She's been in underwear since day one for day and night time. It worked well for her personality.
Ditto Racey, except we're still doing pull-ups at night. I'm hoping to try and phase them out soon. I think it was best for us to just jump right in and not look back.
Same for us. We chose a Easter weekend last year because it was a 3 day weekend and we had great weather. She ran around outside in a tshirt and underpants all day. We brought a potty outside with us and also had one in whatever room we were in. By day 3 she didn't have any accidents. We used pull-ups for night as she was still waking up wet often. For transition at night time we just waited until she was starting to wake up dry a couple of nights/week in a row and then made the switch. She's been trianed for almost a year now and only had 3 night time accidents in that year.
Followed it....but gave in to Pull Ups at nightime and so now she's fully potty trained and sometimes has accidents at night but most of the time calls out for us to come get her to go potty. It has great rules to follow that I would recommend to others that are potty training.
Re: 3 day potty training boot camp?