We visited Madrid in December and stayed in Juan's lovely apartment. He had arranged for his friend to meet us there to gain access and give advice. We were slightly delayed but this did not cause any difficulty for us.
The apartment is top floor so do not bring heavy luggage- not for the old and infirm.
The apartment is exactly as pictured. Bright, smart, clean and very well equipped. The location is amazing. Easy to walk to shops, restaurants and galleries. Metro, bus and train also very close if required.
Juan maintained a regular dialogue via text to check that all was well. He also provided helpful information about getting into Madrid from the airport and how to reach the apartment. He additionally added some personal suggestions for tapas etc.
I would highly recommend this property.