I stayed already for the third time the autumn months in David's place, which probably tells more than any other detail that I really like his apartment. It's centrally situated, nice restaurants are close by, the best market hall of Madrid is just a few steps away and so on. For a Scandinavian it is also important that the heating is efficient. Also the kitchen is very well equipped. For light sleepers a word of warning: at times there's some noise from the street as there are several bars, but this is mainly during the week ends. Otherwise there is no noise, also the neighbours seem quiet. Obviously, highly recommended!
Jukka