We had excellent communication with our friendly hosts Maria and Jose before and during our stay. They were very quick to respond and answered all our questions and concerns. Jose met us at their apartment and showed us around and gave us some suggestions on what to see and where to eat, etc. Their apartment is located in a safe neighborhood and there are small markets nearby where you can buy fresh fruits and the famous Cava Baja area is just walking minutes away - a plus after a night of tapa bar hopping. The closest Metro is La Latina. We found that in order to go to the train station, we had to go to the next Metro station: Aston Martin. Their apartment is on the ground floor which is great if you can't do steep stairs. There is a locked security gate at the entrance and bars on the window. There is some noise occasionally at night from passing cars, motorcycles, and pedestrians returning from nearby tapa bars, but overall, it is very quiet. There is a street lamp that shines through the bedroom window, so make sure the hosts show you where and how to operate the blind. The bathroom is small, but there is a hair dryer, soap, shampoo, and lotion for you to use. The living room area makes the place feel spacious. Our adult son slept on the sofa bed quite comfortably. I would say 3 adult guests is okay, but 4 might be a tad too tight. Kitchen had full size refrigerator and well stocked with cooking and eating utensils. There is also a washing machine, no dryer, but there is a drying rack. Air conditioning worked well. We were pleased with our hosts and with their apartment. Thank you Maria and Jose for our great stay in Madrid!