What is a hotel fastpass?
Is it different to the standard fastpass?
You get a single Hotel FastPass per night of your stay per person. Each one is dated, so they're only valid on that particular date.
You can use it for any single attraction with a FastPass queue, at any point during the day (no set return time like a normal FP). They're not valid between 13:00 and 16:00.
You just walk up to the ride you want to do, hand in the voucher to the CM at the FastPass entrance and they'll let you through.
The VIP version allows you do ride any number of rides with a FastPass queue, as often as you like each day, for the entire length of your stay.