Upgrade the air conditioning!
Stayed one night for business. Very hot day with temperratures in the 90s. Lobby of hotel is quite appealing and a tasteful refurbishment of an old building. Rooms quite small and dingy with small (but recently renovated) bathroom. Overall OK - what you might expect for a regional Westin but some way off the standard you would expect in a larger location.
Main issue was the very large 1980s (literally) aircon unit with loads of ugly pipes coming out the side. This thing was like having a jet engine in your room in terms of noise - you would have to be one hell of a sleeper to get through that! Luckily I spotted the problem so cranked it up full blast at 64F and then went out to dinner for 2 hours. By the time I came back it was cold enough to just turn it off without the room turning too hot throught the night.
Although the room was OK I would not stay here again until they upgrade the aircon to something quite and modern than a big bos. There must be hotels in Columbus with more modern facilities than this.