Huge apartment outside of the main/touristy area of Madrid. Check in was easy and Maria Jose was available for any and all questions. You are in an apartment close to neighbors so definitely keep that in mind if you are a larger group (be respectful if you are going to be active in the apartment early in the morning/late at night) but there were three of us and it didn't hinder our comings and goings at all. It was a great home base for us as we took day trips outside of Madrid, or spent the whole day walking around the city.