When booking a stay at the Arizona Biltmore, you can take advantage of an incredible deal. In addition to the regular FHR benefits, you can also get a $250 property credit which can be used for more earning opportunities and benefits.

There are a number of benefits to booking hotels through Fine Hotels & Resorts.
You will get all of those when you stay at the Arizona Biltmore, but if you stay by October 5 you will get an additional $250 property credit which can be applied against any kind of room charges. The spa treatments that cost less than $250 are covered by the $250 property credit.
Room rates can be as low as $299 per night, but can go as high as $800 per night.

Prepaying for a 1+ night FHR stay or a 2 night The Hotel Collection stay will give you a $200 statement credit on your Amex Platinum card. If you haven't already used that benefit this year, you can get a net cost of 99 plus tax and get the $250 property credit, $100 food and beverage credit, free breakfast and more.
There are potential deals that go beyond that. You can get food & beverage credit on top of those offered by FHR if you are a Diamond or Gold member. If you register for the latest promotion, you will get double or triple points.
If you want to stay longer at the Arizona Biltmore, you can take advantage of the $250 resort credit that is available. You wouldn't get any FHR benefits if you booked an additional night at the hotel separately.
If you're in a two player mode, you can book four separate one night stays and pay for them on your separate cards. You would get a statement and property credits over the four nights.
There is a loyalty lobby.