We enjoyed our stay in Madrid, the location was excellent and Melvin’s team were very helpful. They responded to communications quickly and were able to offer us an early check in. They also stored our luggage after check out.
The apartment was of a good size for a family of 4, though think you would be a bit lacking in space if there were more than 6 people staying. Facilities were good, though the finish in the apartment was basic. The rooms were clean, though the bathroom area did smell strongly of drains at times. Melvin did offer to send someone to fix this however.
We had no problem with noise from the nightclub, which was open for two of the nights which we stayed.
The beds were very comfortable. The air conditioning units are only in the bedroom and are mobile units, not central. They worked sufficiently throughout our stay.