Very good stay in Madrid, the apartment is right is the city center, 1min from Plaza mayor, 5 minutes away from Palacio Real, 15min walk from Malasena!
Perfect location.
Easy to access the apartment from the metro station (Gran Via or Callao). The apartment has 4 independent beds (including convertible couch). The place is a little tiny for 6 peoples but to sleep and shower for a week-end it is good enough. 5th floor with no lift...
Clean bed sheets and towels, very happy with the place.