The best thing about this flat is the location, it is located in a very nice area of Madrid. There are shops and restaurants nearby, and it is very well connected to the city center. The hosts are also very nice and responsive if you need anything. Bear in mind that the flat is partially underground, and cars are usually parked outside so there is very little natural light. As it is underground, it is also very damp and cold, especially in winter. For long term stays the host also asks for additional payment outside of Airbnb, it would be more convenient to have this already included in the booking payment... But overall a good stay, especially due to it's great location.