it's a beautiful and well-located flat, nicely looked after, and I'd recommend it. I have made a couple of suggestions which Suresh says they're taking on board.
For one, it's very hot in the flat and the thermostat doesn't seem to make any difference. I couldn't work out just how to turn it off, so in the end was too hot at night even with the windows open.
It would also be useful to have a manual for the house, either pdf or printed out, although most things other than that were self-explanatory.
Finally, it's beautiful and clean but the kitchen space had almost no basics (e.g. no oil, no salt, etc) and I think a lot of people who choose an airbnb over a hotel do want to use the kitchen without having to get all the most basic stuff.
Overall though, very comfy, very clean, would stay again.