Eliana and Diego were awesome hosts they allowed us to drop off our bags early and provided very quick responses to our inquiries. They even provided information on seeing a doctor on Sunday since my mother wasn't feeling well.
The apartment is about 20 minutes from the airport by train and is located on a main street with many business and easy access to transportation, however it's very quiet once you get inside.
The apartment is very stylish, sparkling clean and has many amenities. I felt like I was at home. Whenever I'm back in Madrid I'll definitely stay here again.