Sometimes I find the Marriott Suites properties to be less interesting than regular Marriott FS properties ... mainly because they often don't have a Concierge Lounge.

I don't think its entitled to say I booked a double and that's what I want. Of course, the last couple of times I've invoked the guarantee (one time they denied there was any such thing), the king bed ultimately appeared. As a PP, I would have appreciated that when I check into a hotel at midnight, my room is waiting and I'm not arguing over a bed size. Entitled ... perhaps but there is a significant difference in the mattress quality between the king normally found at Marriott's and a double.