I actually purchased it for our trip (we just got back yesterday). We didn't really use a schedule since we went during the week and it's off season so we could pretty much do what we wanted without too much waiting. But it was fun to play around with the schedules and gave me a good idea of when different rides would be busiest. Since you're going during a busy time it may be worth it for you since it tells you when you should get fastpasses and such to minimize your waits(we didn't really need to use fastpass on our trip). I figured with the amount of money we were spending on the trip, what was another $15?