At Hampton Inn and Suites properties I am routinely upgraded to a suite as a Diamond VIP. Sometimes I have to ask, sometimes I don't, but they have never said no if they have a suite available. At a non-suite property, they often put me in a whirlpool room, although I've never used it. I think HI does a good job of giving something extra to Diamonds. Certainly much better treatment than the Conrad Hotel in Dublin - don't get me started on that one!