I thought this app was horrible. When reserving a time for a lightning lane if you did not refresh the tip board then once you book it the time might be 20 to 30 minutes later. If you refresh it and you are on a park hopper it resets back to the disney park so you have to change the park each time. Figuring out linking the tickets was a challenge as well. Seems silly for these small annoyances not to be standard operating procedure.