What a fantastic apartment, located in an area that has everything you need but is quiet at the same time (except on a Fiesta day when it was noisy and the streets were full, which was brilliant). The apartment was as shown in the pictures, it is cute and beautifully decorated, and was more than enough for the 2 of us (it can house more). It was spotlessly clean, the air con was great, beds were comfy, showers were good, everything worked, the balconies give views up the street, and it's on the 3rd floor but there is a lift.
The location was excellent, just 2 to 3 minutes from La Latina metro, a minute to a square with tapas bars, and there are bars and restaurants all around, plus supernarkets nearby. It is a 10 minute walk to the Royal Palace and Cathedral, likewise the Plaza Mayor, you could walk to the city centre for the museums and gardens / parks in around 25 minutes if you felt inclined, but it's 10 minutes on the metro with a change at Gran Via or 2 changes via Opera and then Sol. Just around the corner is the Museo de San Isidro which is free and worth a visit if you want to see the history of earlier civilisations in Madrid and view the many interesting artefacts.
We would not hesitate to use this apartment again as the base for a visit to Madrid, it is 5 star *****