Edu's place is a great place. It is near everything. Very easy to take either Metro or bus if someone wants to go around the city. Room has its own bathroom and very spacious (both room and bathroom). Edu has provided clear instructions on how to check-in and check-out and made check-in/check-out process very smooth. I would definitely recommend this place to anyone who is planning to stay in Madrid for few days.
Just on a side note- there is no fridge and kitchen (it is mentioned in the room posting description) so plan on buying cold water bottles every day to drink cold water during hot summer times.