We stayed in Sonia's apartment for a long weekend. The location of the apartment is perfect and all amenities are within walking distance. The apartment is situated in front of a lovely little plaza with many bars and restaurants. Plaza de España's metro station is two minutes away and many sights are within a short walking distance.
The apartment itself was in impeccable condition, very clean and well equipped. It's spacious and has a lot of natural light. It has been decorated with good taste. The area we used most was the beautiful patio - perfect for a long breakfast or a few drinks in the evening.
Sonia replied very swiftly to all our e-mails and was also helpful when we tried to find the apartment. I can most warmly recommend her apartment and would book it again!