The Hyatt sells "Stay Certificates" where you prepay 1 night's stay for $135 + $6 s/h= $141 total including all taxes. Delivery outside the US is $20 (fed ex) Still $155 total is not a bad price!!
I just used one for the 1st time last month. All I had to give was the cert and my cc for incidentals. No addl. costs. It ended up cheaper than my parents' senior rate of $129 + tax.
It's great for when you really want the Hyatt but don't want to pay their reg. rate but can't/don't want to chance it with Priceline or Hotwire.
I would first call to make sure there are stay cert. rates available for your desired dates before buying. (I think, like using ff miles, there's limited availability. Just b/c they have hotel vacancy doesn't mean you can use a cert.) They are non-refundable and do expire though mine didn't state its exp. date on it. I wasn't worried since I knew I'd use it sooner or later but if you don't visit Orlando often, I would make sure you can use it before buying. Another Diser stated Hyatt put a hold on her room and allowed her to call back with her stay cert. # once she received it.
https://www.certificates.hyatt.com/products/CertsStay.aspx
Hyatt MCO requires a Choice level certificate.
HTH!!