My friend and I had a wonderful stay at Dervys and Ruti's place! Centrally located and walkable to so many wonderful sights, we rarely had to take public transit, except for the metro a few times! The apartment is beautifully decorated and well-equipped with clean towels and beddings, a full kitchen, washing machine (no dryer) and a detailed tourist infocentre on their TV complete with recommended walking tours and videos highlighting must-see places in Madrid!
Upon arrival, they met us at the door and helped us with our luggage, gave us a tour of the studio and answered all our questions.
In terms of the lack of wifi, we walked to the McDonalds 2 blocks away and able to access free wifi :)
I would highly recommend this place and Dervys and Ruti were wonderful hosts!!