This is one of those places that makes you feel at home. Apartment is clean, cozy with all facilities and very good size. We didn't use the kitchen but is big and has everything you need to prepare a quick meal or a feast. We use the washing machine and although it does not have a dryer, we just let it dry in the air and it was fine as there was a cloth rack.
Location is outstanding. Close to everything, multiple restaurants, grocery stores, coffee shops, bakeries, etc. A quick 5-10 minute walk to Plaza Mayor and El mercado San Miguel.
Ernesto was very flexible as we arrived around 1 AM and he was waiting for us to give us the keys and explain the in and outs of the apartment. Overall, an excellent place to stay and I will use it next time I come to Madrid.