Alfonso and Guillermo's place is in a fantastic location that that has four subway stops, the Palace, Opera, Plaza de Espana and Gran Via all within a couple minutes of walking. Although it is a large apartment, the bathroom and kitchen are on the small side, yet were in line with other European style apartments. We really enjoyed staying there and would recommend it to all. They had everything you would need for short or long term stays. The only issue we had was with the weak internet, as we would lose the reception especially late at night while watching Netflix. We would suggest the owners to use a booster or upgrade the router to obtain a stronger signal. Communication, check-in and out were awesome, so we will look forward to visiting Madrid again and staying in this wonderful apartment.