I have a slightly different take on this................
As a Sheraton Vistana Timeshare Owner (SVO), I was intrigued by the fact the Marriott Amsterdam showed up as an exchange option. The redemption rate was quite reasonable - but - to be clear - this is a hotel, not an exec apartment. During a recent stay, I discovered this property has a timeshare option. I am waiting for details. My hunch is that Marriott has developing more diverse offerings and these are the latest examples?