The apartment is a lovely deal, prime location, super nice hosts, very easy and cool vibe. I have come to love these Airbnb hostels where you come across lively people. We loved the spot and we did not even use many of the amenities provided. The house has clear instructions so you get to know your way through and everything is clean. I'll emphasize the cleanliness.
The only tiny issue, for the sake of saying something, is that the house, and the room, in particular, is a bit cold in winter since there is no heater. I'd say about 16-17 degrees, the location would have made a 10-degree room worth it though, so just bring long PJ pants.