Highly recommended.
The room was spacious, clean and well-equipped. It almost felt like staying in a hotel room (with the added bonus of a full kitchen). It is located two blocks from a hub metro station and within walking distance of all major sites.
Diego was a great host - he gave us great tips on what to see and local restaurants. He even made reservations for us for a tour at one of the port cellars. Be sure to use his restaurant suggestions - we always enjoyed our dinners at the places he recommended.