We had a wonderful stay in Javier's apartment, the location is perfect and within walking distance of all major attractions. A few reviews mentioned about noise at night but to be honest it didn't bother us as it was no different from any city break we have had. The apartment is on the fourth floor and there is a lift so no issues getting luggage up. Metro station is about 20 metres from the apartment but we had such good weather we rarely used it and walked everywhere instead. There is a fab food market about 5-10 minute walk away which was great for trying out the different food the locals eat and it had a great atmosphere. Would highly recommend this apartment for your stay in Madrid, it ticked all the boxes for us!