Deigo's apartment was just like the photos on Airbnb. Communication was prompt mostly. In the beginning, I was communicating with Edwin. Sometimes I needed to wait 1-2 days to get his reply. After arriving in Madrid, I communicated with Diego. He was very prompt, and his English was perfect. One confusing aspect was the original instruction from Edwin said I needed to pick up a key in their office, which was located near Sol. Since the apartment was near Alvarado station, it would have been inconvenient. But in reality, the key to the outside gate and the apartment were controlled by an app. Diego gave us a link for the key app 3 hours earlier than our check-in time (thank you!), so we didn't need to go to their office. When we arrived at the apartment, we realized it was located behind the Mercado Maravillas, and we saw many parked delivery trucks. We were afraid of early morning noise, but it was not the case. We could enter the market from the backdoor, and it was very convenient to buy empanadas, fruit, cookies, meat, wine, and seafood! The apartment was quiet, the bed was very comfortable, the temperature was easy to control, there were plenty of hangers, bathroom was very clean. From Alvarado station, we took Line 1 to Sol. It was a quick ride. I highly recommend Diego's apartment to anyone who wants to be away from the tourist area.