We stayed in Melvin's apartment for 3 nights. Updated unit with a comfortable bed, good amenities and very clean. The location is ideal - walking distance to everything. We explored Madrid on foot the whole time. Safe neighbourhood. We were there over a weekend so there was a bit of street noise but it didn't bother us. Melvin always promptly responded to my inquiries and arranged for airport transfer upon arrival and for our departure. We did not meet Melvin but he arranged for someone to check us in when we arrived. There's an elevator to get to the apartment which was great for our luggage. We enjoyed our stay and highly recommend the apartment.