The Concierge at Grand Hyatt San Francisco Union Square
Grand Hyatt San Francisco's concierge is mentioned by expert reviewers. Out of 7 reviews tracked on TripExpert, 2 acknowledged the concierge, including Fodor's and Gayot.
Grand Hyatt San Francisco Union Square 
Fodor's
Gayot
Fodor's "Spring for the Grand Club, and you'll get a room on an upper floor and access to the all-day food and beverage service, computers, and concierge"
Gayot "The Grand Club rooms on upper floors are particularly impressive; guests here have access to a dedicated concierge and a lounge that serves complimentary continental breakfast each morning"
