SO GOOD

I hope you love it, but also that we all haven't overhyped it!
DO IT.
It's super easy now (as long as
MDE is working...*sigh*). Once you've used up your 3 that you pre-booked, you open the app and book more fastpasses for that day, just like you did when you pre-booked them 60 days out. You select the people you're booking fastpasses for, select the date, and select the park. And yep, you can book them for a different park (shoot, you could even do fastpasses in all 4 parks--prebooked ones at MK, then you could get a fastpass for Epcot, then once you've used that, get one for HS, and then once you've used that one, get one for AK). You can only book one more at a time, so you don't want to use up your 3 that you prebooked by say 2 pm, and then get an extra fastpass for like Illuminations, since that means you can't get any more fastpasses until after Illuminations and leaves you with no fastpasses for the rest of the afternoon. But yea, once you've used up your original three for the day, the only restriction left is 1 at a time.