the apt is small, but doesn´t feel small ! the bed is big, and everything has an intelligent, useful solution, the shower works great, there´s heating and ac, complete equipment.
the location is very good, not far from the metro (less than 10 min walk), but you can reach many city highlights walking. there are some supermarkets, bars and restaurants close, but it´s very quiet in the apt.
i really felt at home and would like to stay here again during my next madrid visit !
( for tall people it could be uncomfortable)