It also only works in the park you are in. So say you are in Magic Kingdom, and your family is thinking about heading over to Epcot...you want to know what wait times are like for Soarin' or Test Track.....sorry it's a no go.
I have it, we went back in Feb, and are going back again in May. I LOVED it. I didn't have to worry about pullign out a park map, and most times while we stood in line for one attraction, we could plan ahead to where/what we wanted to do/go on next.
It also lets you know where and what characters are available. It gives you a park map and finds YOUR location in the park by GPS (handy when I needed a bathroom STAT). It also gives restaurant descriptions/times, show times, etc.
Another feature is that it also gives you resort information. I turned it on as we were passing Ft. Wilderness and it gave me the info for that resort.
It updates in real time -- no waiting on other users to provide input. I was at the safari in Ak while my husband was getting FPs. The return time posted was from 11:52-12:02....I look up and see the FP return time changing on the sign and then looked at my phone which updated with the info seconds later.
I found it priceless.
-- the only downside is that my phone (EnV touch) uses a ton of power, so I HAD to make sure to charge my phone at night so it would be fully charged the next day for use in the parks. Once I brought up the application, I left it running the entire time we were at a park so all I had to do was pull it out of my purse to look at it when needed.