Just to clarify--The upgrade offer IS available for any reservation, if you checkin on Foursquare, have a reservation already booked and a suite is vacant and available.
Apparently they don't offer the specials as advertised. "Do you have suites available?" "Yes" can we have the upgrade you promised?" "Oh, we don't have any suites." Shady, people.
The complimentary suite upgrade is only valid if you book directly with the Crockett. No joy if you book through someone else, like Expedia. This is not stated anywhere, and disappoints me. Boo.
The Crockett is a historic boutique hotel and beloved landmark in the heart of downtown San Antonio. Please note this location is temporarily closed through 5/1.