It was a pleasure to meet David. He was very welcoming and helpful, always present for any question we had. He gave us a map and some tips to enjoy Barcelona to the fullest and so we did!
The apartment is perfectly located. Just a few minutes walking from La Rambla and the waterfront. We found it completely clean and tidy.
The only comment I can say is that you might feel the heat in the apartment is not quite enough (specially if you're used to hot weather like me and you go to BCN at the end of winter). However it was never a problem itself and we were very happy in there and had a great time.