Originally Posted by
aamilesslave
It's worthless. I used it recently to ask for a specific room number at a JW Marriott on a recent stay. I wasn't pre-assigned the room even though it was available upon check-in.
Sorry to hear that it didn't help you, unfortunately this is one area where there is a wide gap in the consistency of how hotels use the data. Some do, some don't. Luckily the first one I added a specific room for this weekend was fulfilled. I guess my thought is that it never hurts to try.