We used Ridemax for our trip last week. At first, I was kinda worried about showing it to my husband. I thought he would think I was crazy and had OCD. However, I'm happy to report that we will not go back to Disney without using it again in the future! It was perfect! We had minimal waits for anything that we wanted to do. In fact, Day 1 worked out so well that if I wanted to do something "out of order" anytime the rest of the week my husband insisted that we stick to the plan.
As another poster stated earlier, you will get ahead of yourself, and this will allow for bathroom breaks. We also had a couple of free times listed throughout the day (some of them were a couple of hours long) - this is when we did character greetings and photo pass.
It was a little frustrating that character greetings couldn't be scheduled. I also wished you could schedule meals at locations other than the park you are at. For example, one night we were at Magic Kingdom and eating dinner at O'hana. It wouldn't let us choose O'hana. Instead, I had to put that we were eating at the "Park Entrance" and scheduled it 30 minutes before our reservation to give us time to get there.
I'm looking forward to using it for our next trip more so than I was for this trip. Our next trip will just be our family of 4. This trip we took my sister and she had never been before. Therefore, I felt like she needed to do EVERYTHING. Next trip, there will be things that we won't have any interest in doing, some things we'll want to do more than once, and my kids will probably no longer want to do character greetings as they will be 11 & 9 (Both Boys)

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