The flat is beautiful and is in a very central, accessible location. We loved the neighborhood, and David was an excellent host.
My only gripe is that the flat is surrounded on all sides by kitchens and storage rooms for restaurants, and it is very very noisy late into the night (~1am). I would also caution visitors to be careful with some of the door handles, grab bars, and bedside lights, as they are barely hanging on and will fall off with even the gentlest bit of pressure.
Overall though I would recommend this listing and David as a host!