I really wanted to love DisneyWorldLinesTP, hoped it would be the wonder it claimed to be, but it just wasn’t. First of all, crowd level. Yes, it does give the disclaimer that the forecasts are just estimates, but they were way off. Secondly, our customized plan made odd suggestions which clearly showed glitches in the system (like going to the American pavilion in Epcot for a 105 minute wait at 9:00, when World Showcase doesn’t open until 11:00), and finally, it simply was unrealistic to follow. It suggested running back and forth across the park to enjoy attractions on the opposite sides of the park, and still showing us having to wait in line 30-40 minutes for them. That may be fine with adults or older kids, not so much with a younger kid in tow. After the first day, I only used it to check line times and after the second day, I quit using it altogether. The My Disney Experience app and some common sense is all you need. Get there early, ride the popular rides first, and then just relax and have have fun!