Juan's appartement is a nice flat, well localized (easy acess from the Metro Lavapides). We really enjoyed walking around on sunday morning during Retiro market.
The appartment is well equiped with all comodities. Although it is a little dark, we really appreciated the quiet situation (as it is on the back of the building, we did not have any noise coming from the street) and the cool temperature. Perfect place to stay a few day and discover Madrid.