Originally Posted by
Yojimbo1211
Couldn't they be used to upgrade to a club level room on a base stay? I know a few hotels have renovated club rooms which are nicer than the base rooms.
Technically, yes they can be used to upgrade your room in advance of check-in. But if the room is available at check-in you're already supposed to be guaranteed an upgrade to the best non-suite room available. And you're also guaranteed club access.