I used it on a Versa this weekend. The free 1 day trial. I must say I enjoyed it. It gave me accurate wait times and FP times. There was a time that it was off 5 minutes on the wait time though.
Also, I noticed it you weren't in the same park, say in MK and looking at DHS times, often the info would be "high Demand" or Moderate, or See Now text for wait times and the FP would say Limited Availability. I think it was a glitch or maybe on purpose to not show accurate times if you weren't in the park.
When we went to DHS, then the times would display.
i liked the fact you could set reminders to view shows or events, look at the next times to plan your day.
the only downside I hated on the Versa were these:
1) screen VERY hard to see in the sun.
2) wait time in other park issue
3) touch screen. It took some repeated pressing to make it work, also, scrolling down to see the attractions was very hard. i had to use my sunglasses legs to scroll it down much easier. if you have a flip or slider with a directional pad on the keyboard, then its better. i installed it on a coworker's enV Touch and it worked better.
i think I'll get it the next time I go, but since my renewal is up in 3 weeks on my SP, Imight wait until after blackout to do it. no use paying $10 for 3 months I won't use it for.
So yes, I recommend it. It helped us not rush. normally i'd have huffed it to a popular attraction to get on thinking the line was long, but with the app, many times I'd see 20minutes and the FP was only 30 minutes in advance, so I could get on another ride with the kids before heading over across the park. So the time factor and maximizing your day was great.