I had the opportunity to spend an evening at the Hyatt Regency in Columbus in May. Overall, the hotel provided a very nice experience. It is conveniently located and attached to the convention center. It was clean and staff were very friendly and helpful. The room was well appointed and clean upon arrival. The beds were comfortable. Everything functioned as expected. Check-in and check out were a breeze. I had a room next to the elevator and vending machines - but could not hear them the entire night. While the Market Street restaurant was very good, I'd recommend grabbing lunch at the North Market venue - a farmers type market with fantastic foods, cheeses, desserts, spices and meats.