since we're introverts we loved our stay in building 27--which is nonsmoking. we requested waterview and had a lovely view of the river, with a second floor corner room. Unlike many on this board, we would not have wanted to be in bldg 14 or 15, because it was too close to the action. It was very quiet where we stayed, and reminded us more of a retreat center than a "moderate" resort.
My DS has severe asthma, and I was quite worried about the window unit air conditioner. Our reservation noted the medical necessity for nonsmoking--and our request for special cleaning. They had not done that before we checked in, because there was dust on the fan blade--we had them come back to detail the room before we settled in.
I also asked them to come change the air conditioner filter--which they did immediately--and it made a huge difference in the air quality. Made it through w/out any asthma flare ups!