Louise's place is a spacious basement room with a toilet/sink room. (Shower is upstairs off the living/dining/kitchen area.) Very quiet indeed - big surprise for a mid-town NYC address. Slept very well. However, the stairs to the living room were open. If you wanted to go to sleep early and the owner wanted to party upstairs later, there might be some discomfort with the noise.
My choice to stay in NYC was sudden but she handled it quite well and I felt fortunate to get such a nice place for such a reasonable price right on the West Side near 72nd street.