Don't know if the Admiral Floor gets them, so sorry can't help with that question.
We had them with the Empire State Floor at Hotel New York. We loved having them, found them very handy. We did not pay anything for them, they were included with the Empire State Club (but you pay more for that floor than regular rooms so I guess technically you do pay for them in the increased room price). You can not use the VIP fastpass on every ride, only the rides that have Fastpass so you do still have to queue for some rides. But we were glad we had them when we were there in December, but even with them, we got more rides on some rides (like buzz) during extra magic hours than we did with the vip fastpass during regular park hours.
So I guess for us the extra price for the empire state club was worth the price, but not just for the vip fastpasses, we loved the lounge also, so would definately stay on that floor again if we go back to that hotel.