Perfect place!
Hans and Joaquín provided us with first class place and service. Their flat is so central we could do all interesting sites by walk easily. It's a spotless, very quiet and carefully designed place, air-conditioning was an added bonus with the heat.
Communication was great, and they extended their super friendly service by greeting us at airport directly, gave us good tips for eateries, chilled wine in the fridge, fresh flowers etc.
In short, perfect place for a great stay (even though my luggage never arrived, but this made up for it).