There are no two ways to put it, the place and the host are great.
About the place (La Casita, in Valldemossa)
It is a charming townhouse at the heart of Valldemossa with all the commodities available for a great stay, including, but not limited to, an extremely well furnished kitchen, quality linen and beds, heating and a/c depending on the needs,... It has been very well thought out and designed for a very pleasant stay. It is very quiet, the only sound we really hear was the mating call of pigeons at the neighbour's house...
About the host,
Saying David has gone the extra-mile is clearly underselling it. Although we booked on the day for the next, he went through the extra trouble to greet us, show us around and give us advice to enjoy our stay. When we had a minor issue, he got back to us in minutes with helpful advice. While we have now booked quite a few times on AirBnb, we have never met such a gracious and thoughtful host. We believe that he is was one of the cornerstones of us enjoying our trip.