So I've got two stays coming up - 2n at the Olive 8 in Seattle and then 3n at the GH in Denver. Is it worth it to use Confirmed suite upgrades or try my luck with a Diamond upgrade at check in? How much nicer are the actual suites I would get vs the room I *may* be upgraded to? I have 2 available suite upgrades and *may* have another stay at a nicer property before they expire. Should I hold onto them and gamble with an upgrade or use them now and see what kind of room I get if I end up with another stay (most likely that stay would be at the GH Kauai). Thoughts? Opinions? Favorite Pizza toppings?