We were a large family group of 11 people who rented one of Sonia's places for a week. It is an extremely centrally located apartment.
She is a great hostess and is always available for help. Some small inconveniences with the internet and AC were quickly dealt with and we were compensated for it with delicious seafood and vegetarian paellas on our next to last day there. Sonia's place is home in Madrid for us. We would gladly return and recommend it to others.