The Business Center at Hyatt Regency Chicago
Hyatt Regency Chicago's business center is mentioned by expert reviewers. Out of 11 professionals that we monitored, 2 recommended the business center, like Oyster and Star Service.
Hyatt Regency Chicago 
Oyster
Star Service
Oyster "It has four restaurants, a business center, and fitness center; convention attendees may not even feel the need to leave the property"
Star Service "A business center stays busy, especially during crowded conferences"
