Interesting ... once again, thank you to everyone for sharing their experiences. I'll definitely give Centurion a call later this week and try it out - will report here if I'm successful booking one of the top suites, maybe it'll work.

What about combining it with various MO's promos? For example, they currently have a "book 4 nights in a suite, get 4-th night free" promotion running at the San Francisco property (and others too, as far as I can see).

I recall reading somewhere on this forum that it was possible to combine the promos like the one above with the free night. Has anyone tried it and, if so, how does it work, is that something you'd mention during booking with Centurion?