The brand new St. Regis Chicago wasn’t offering Marriott Bonvoy Platinum members breakfast as they’re required to. They claimed that their restaurant was operated by a third party, and this got them out of the obligation. This all was addressed quickly, in just a couple of days.
In the meantime, however, there were a flood of consumer reviews of the property on TripAdvisor – most of which were very bad (and likely fake).