I got chosen to test out the bands. I usually go to disney once a year (compared on once a month for universal), and this is my first time staying on site (pop century), we're also flying and using the disney shuttle to/from the airport.
I didn't look into it too much. I picked out the band and got my name on it to have it mailed to me. I was excited to get fastpass reservations in advance. I noticed I could only do three per day and only at one park. I did more research and called disney. You cant even use it to replace a regular fastpass after the 3 are up. Say for example you picked Dinosaur, Everest, and Safari in the morning at AK to finish before lunch and head to another park. You're finished. No more express for you at all the rest of the day. I wont be using the band. I called and they said i can get a regular ticket and use the normal fastpass.
here is a picture i took of them on instagram
http://instagram.com/p/cFFWghtUBE/
(also i apologize if i covered something already i wasn't about to read 40 pages)