This apartment is well located in Madrid. It was very easy and quick to get the bus and metro into downtown as well as get on the highway for daytrips to Toledo and Segovia. The area felt very safe even late at night and it was very quiet. The building is nice. The bathrooms have been updated and they provide lots of towels (something that seemed to be lacking in a number of other rentals). The kitchen was well equipped but had a lot of small appliances - many that didn't seem to work (blender, toaster). We had 4 teenaged girls and this place had the best WiFi by far of all the places we stayed.
The apartment itself had good amenities but could really benefit from some updating of the furniture and fresh paint. We were there during a heat wave (40+ Celsius) and unfortunately the air conditioning is only in 2 rooms - the living/dining area and one of the bedrooms. The other 3 bedrooms open up into an inner courtyard and they were very warm and stuffy during our stay.