This apartment in Castello 95 has a great location and the building is fine. It’s on the 1st floor and has an elevator as well. It fit our family of 5 comfortably. Their are some signs of wear on the walls and some tiles. The only issue we had was that the AC did not work well enough for the Madrid heat. The master bedroom in particular was the worst. Host replied and even left a fan for us because it was clearly not working well enough. My wife even decided to move to the couch after sweating it out for a while. We have stayed at other apartments in Madrid in the summer and have had no trouble with the AC. If you are thinking about staying here I would avoid the summer months. Other than that we liked the apartment and it’s location.