The promotion is valid in select cities in the USA and in Australia!
The hotels where this is valid:
Andaz Maui at Wailea
Grand Hyatt Kauai Resort and Spa
Hyatt Regency Maui
Hyatt Regency Waikiki Beach Resort and Spa
Hyatt Place Waikiki Beach
Park Hyatt New York
Andaz 5th Avenue
Andaz Wall Street
Grand Hyatt New York
Hyatt Herald Square
Hyatt Times Square
Hyatt Union Square
Hyatt Place Flushing
Hyatt Place New York Midtown South
Hyatt Place Yonkers
Hyatt House White Plains
Phoenix: Book and stay by December 31, 2016
Hyatt Regency Phoenix
Hyatt Regency Scottsdale Resort & Spa at Gainey Ranch
Hyatt Place Phoenix/Chandler
Hyatt Place Phoenix/Gilbert
Hyatt Place Phoenix/Mesa
Hyatt Place Phoenix North
Hyatt Place Scottsdale/Old Town
Hyatt Place Tempe/Phoenix Airport
Hyatt House Scottsdale
San Diego: Book and stay by December 31, 2016
Park Hyatt Aviara Resort
Andaz San Diego
Manchester Grand Hyatt San Diego
Hyatt Regency La Jolla at Aventine
Hyatt Regency Mission Bay Spa and Marina
Hyatt Place San Diego/Vista-Carlsbad
Hyatt House San Diego/Carlsbad
Hyatt House San Diego/Sorrento Mesa
Washington, D.C.: Book and stay by December 31, 2016
Park Hyatt Washington
Grand Hyatt Washington
Hyatt Regency Washington
Hyatt Place Washington DC/Downtown/K Street
Hyatt Place Washington DC/US Capitol
Details on the offer can be found here. The discount is off of the Hyatt Daily rate. You have to be logged into your Hyatt profile for it to work.
The offer has shown up for me on searches even when I select special rate codes.
The good thing about the promotion I have noted is that it does not require pre-payment and you can cancel the reservation up to a day or two in advance.
This is good because most hotel promotions are rates that can not be changed or cancelled.
On some searches I noted the rate was lower then those for AAA or some corporate codes.
It is always good to check various rate options before making a reservation though as you may find a better rate outside the promotion.
Have you found any great deals with this promotion?