Being able to confirm a suite upgrade at the time of reservation is a major plus in my book. (uponarriving.com)
There's even the long awaited opportunity for confirmed suite upgrades to be valid on award stays, as well as more free nights for all members. (viewfromthewing.boardingarea.com)
I only redeem points or use one of my Diamond confirmed suite upgrades for stays that really matter — as it should be. (travelcodex.com)