Melvin is a great guy. He gave us multiples advices about Madrid, and we're able to check in at 1:30 AM with zero problems. Place was great - large, tidy and well-appointed. Almost everything we wanted to see was available by a short walk, since the place is really at the heart of Madrid, so you can try multiple restaurants and bars nearby. Also, we're able to leave our baggages at his office after checkout, to spent more time in the city without any concern. Definitely would recommend!