I was in Cincinnati for three days attending a conference. As others have indicated, some of the rooms are significantly smaller than others. I was lucky enough to be placed in a corner room with two queen beds. The room was more spacious than most typical hotel rooms and included a reading area with a recliner and reading lamp, as well as a desk. The bathroom was on the small side but functional.
The hotel, as it is fairly old, is full of charm. It is clean and well kept. Be sure to check out the hall of mirrors. Word is the food at the restaurant is excellent (though pricey, even by hotel standards), but I didn't have an opporunity to try it. All the staff that I interacted with were pleasant and helpful. There are a significant number of quality restaurants in the area within walking distance, both chain and local. An excellent location for anyone attending a conference, ball game, or anything else in the lower downtown area.
Be sure to go to the top of the adjacent Carew Tower (49th floor). It's well worth the $2 fee to get an unobstructed 360 degree view of the city.