My husband and I, our three year old son, and my parents had an amazing month-long stay at Leticia's home in Madrid.
Leticia was helpful from the minute I contacted her to inquire about the apartment. Because we were staying for an entire month and we were traveling with a toddler, I had many questions for her. She promptly answered all of my questions and researched any inquiries that she could not answer right away.
She made sure that we had a guard rail for our son who had recently transitioned from a crib to a bed. She also provided a high chair and there were a handful of toys and games in the apartment for for young children.
The apartment is in the perfect location! It is situated in the old part of city extremely close to the Plaza Mayor, the Royal Palace and Puerta del Sol. It is just a few minutes walking distance from the Opera Metro and Sol Metro stops which will take you anywhere in the city (including all major points of interest). There is also a great playground a fews minutes away, right in front of the Palace that made our son very happy. The apartment is in the corner of a small Plaza just off Calle Mayor which makes it centrally located but also tucked away so it's quiet - a rare find and combination in Madrid. The location really provides the perfect mix of tourist attractions and local, everyday life.
I highly recommend Leticia as a host, her apartment and this location for couples, individuals and families.