This is what I see after logging in:

"Terms and Conditions
10% Discount off of the Hyatt Daily Rate is valid on standard guest room accommodations. Reservations are subject to availability and must be made in advance. Offer not valid at Park Hyatt®, except for Park Hyatt Aviara. Offer valid for Costco members residing in the U.S. only and must be requested at time of booking. Guest must present valid Costco membership card at time of check-in to qualify for the offer. Offer is not valid with groups/conventions and may not be combined with other promotional offers. Promotion cannot be combined with Costco Travel packages. Rate is per room, per night, excluding service charges, taxes and other incidental expenses. 10% Discount is reflected in the rate quoted. Additional guests may be subject to additional hotel charges. A limited number of rooms are allocated to this promotion. Promotional blackout periods may apply due to seasonal periods or special events, and normal arrival/departure restrictions apply. Hyatt reserves the right to alter or withdraw this program at any time without notice. Hyatt Hotels & Resorts® encompasses hotels managed, franchised or leased by subsidiaries and affiliates of Global Hyatt Corporation. The trademarks Hyatt®, Hyatt Hotels & Resorts®, Park Hyatt®, Andaz, Grand Hyatt®, Hyatt Regency®, Hyatt Place®, HYATT house™, Hyatt Gold Passport®, and related marks are trademarks of Hyatt Corporation. © 2014 Hyatt Corporation. All rights reserved.
Any unused portion(s) of inclusions are nontransferable, nonrefundable and not redeemable for cash. Travel purchases are not included in the Executive Membership 2% Reward program. Seasonal surcharges, availability, blackout dates and restrictions may apply. All prices are in U. S. dollars. Costco Travel disclaims liability for any inaccuracies or typographical errors."