I thought I'd start this thread to talk about using these certificates at different worldwide properties. Many of us got these at Costco when they were being sold for $79.95 for 2x $50 certs. Hyatt still does sell these (at face value), and there is no difference, that I'm aware of in how the certificates look. I know I had bought some before they were being sold at Costco. At this time, Costco is not selling them. Some properties have been refusing to take them on many rates, and I think it's important to know in advance where the properties that are doing this are located at. I primarily use these in international locations, and often get hit with a bad exchange rate on these. Often times, these make the certificates almost not worth using, even if you got them for 20% off. Doing mattress runs last year, I ran into the Hyatt Place North Phoenix, that all of a sudden decided they wouldn't take them with my corporate rate. I have all original terms on mine, and not the modified t&c. I got them to take them on that last trip, but I dislike these types of games with the certs. I'll post some other properties, with the name of the property, and the details of how they treated these gift checks. I still have over a hundred certs, so use these pretty heavily until they run out.