I bought aa
Genie+ and for a 13-hour day in MK and Epcot used it at least ten times. The only line I waited in the entire trip was for Frozen, and only because they were sold out of LL that day. Made my trip extremely pleasant and blissful. No waits, just swipe.
IDK what the deal is with the two hour rule. As soon as I swiped in for one ride I was able to book another ride. By 1pm I had done LL on Space, Thunder, Splash, Haunted Mansion, and Pirates, and could have done more LL just felt like leaving and heading to Epcot. Once there I easily got LL for Remy, Test Track, Soarin', and Spaceship Earth, and then finished the day with a trip on Cosmic Rewind. Any time in between LL passes I enjoyed a drink and a snack from World Showcase.
If you're going to spend all this money going to Disney, my god, spend the $17 and make your trip completely line-free!