I found RideMax to be really helpful on our last trip. My mom was using an ECV, and we were taking our 2.5-year old DD on her first trip. I wanted to pretty much guarantee making the most effective use of the pre-nap hours, when everyone would be fresh and full of energy. It worked great! Even on a couple of busy days, we got in everything we wanted, and then some. I'm not sure it's necessary for truly slow times, but it was very helpful on our weekend days.
My husband is more of a go-with-the-flow guy, and didn't really want to do a schedule, but when he saw how well it worked and how we were basically able to walk onto ride after ride, he was a convert.