There are major issues with the app. Every single day this week I attempted to use it, it worked fine prior to 7:00 and then wouldn't work once the window opened. I could click on LL+ to purchase and then on payment screen it would say unexpected error please refresh (which did nothing) and required me to delete the app and reinstall it to get anything to work. I work in IT and somehow I was consistently breaking the app! Same behavior if I was trying to book my G+ selection first. On day 3, I deleted and reinstalled app before 7:00 and it still happened to me.
I agree that you should be able to modify a selection without having to delete your current selection. This is clearly an effort to push out the service before it was ready for prime time. I've also experienced having my LL+ get to the final screen after payment to say it was no longer available.
Disney has done this to themselves by forcing everyone into the system at 7:00 and they are not prepared to handle it. I won't be buying G+ again, because it is not worth it. All of the rides my son wanted only had return times for late in the day, which meant you are stuck with the 11, 1, 3 timeframes to add another selection and pretty much after 3 there is nothing to pick! I swear Disney releases the late times first, to try and keep you from getting an early time slot and allowing you to use it to improve the number of selections you can get.
For our MK day, we used 2 G+ rides and bought 2 ILL and rode everything that we wanted to. For Epcot, we bought 1 ILL and ended up riding everything without ever using any G+. For HS, we bought 1 ILL and used 1 G+. HS is a total mess with tons of ride closures. We happened to be walking by Rise as it finally opened and got in line with what they said was a 65 minute wait, but we waited about 90 minutes. I happened to be on the ride at 11, so I was late in booking my next G+, which also means every other window was delayed and by my time at 1:14, there was nothing of any value left. Also the buses for HS don't start until 8:00, so you are behind early entry before you ever walk in the park unless you drive yourself to the park.
I'm glad this trip was just myself and my son. I would have felt ripped off if I had paid for this for my entire family.
