I am glad this thread was posted because I have some questions too. I am looking to book the Grand Hyatt Kauai in February. So I was going to book through the UR mall through Orbitz to get the extra 1 UR point per dollar plus the 2 pts on my Sapphire card. I've checked and the price on Orbitz is the same as offered on the Hyatt website. If I do this, would I be able to use one of my Diamond suite upgrades?
Or another option is to use my UR points (as long as the room is the same price, I'm not sure yet) and if I went this route, would I be able to use a suite upgrade?