The Restaurant at Hyatt Regency Buffalo / Hotel and Conference Center
The restaurant at Hyatt Regency Buffalo is endorsed by travel writers. Of the 3 publications that we monitored, 2 mentioned the restaurant, such as Fodor's and Oyster.
Hyatt Regency Buffalo / Hotel and Conference Center 
Fodor's
Oyster
Fodor's "Green's restaurant (named after the architect of the building) earns high marks for its steaks, in particular"
Oyster "The property has a massive atrium lobby, and an impressive lineup of amenities such as an on-site restaurant, bar, and Starbucks, plus a full-service spa, large fitness center, and rooftop pool"
