So let's do the math ... a day ticket to AK for today is $134. The park is open, the park is open from 8am to 7pm, so 11 hours, meaning each park hour costs $12.18 ... so at $15 for Genie+ you would need to save 73.9 minutes of line time to "buy back" enough active park time to break even
Using the Touring Plans Lines App for more accurate wait times. The waits in Animal Kingdom are currently:
- Dinosaur: 22 mins
- Tough to be a bug: 8 mins
- Kali River Rapids: 13 mins
- Kilimanjaro Safaris: 31 mins
- Navi River: 61 mins
- TriceraTop Spin: 4 mins
- Adventure Outpost: 29mins
Everest is down
So if you used it on Navi, Safaris, and Dinosaur - that alone is 114minutes saved. Less the 73.9m needed to break even, you are already ahead 40.1m
There is probably some wait after the merge point for each of those - so lets say the true wait is only 80% of the reported wait times, still 91.2mins saved and you would be up 17.3mins. Add in a use at Everest once it is up and you are potentially getting "value"
NOW this assumes no strategy or effort in targeting lower wait times- including not making rope drop/early entry when you can probably bang out a few of these with very minimal waits
So to me, using G+ at AK and EP especially is mostly just paying to be able to sleep in on your vacation and avoid rope drop and all that. If you don't care about that then really no use for G+