I had a very nice stay at Radisson Red. Check in was easy and the staff were helpful. I traveled solo on this trip and enjoyed the free WiFi and the air conditioning during the heat wave. The lobby and décor were nice. The corridors in the room level were a little dark, but the rooms were very clean, spacious, and the bed was extremely comfortable—I slept so soundly after months of travel. This time, I chose the hotel based on location in order to be able to walk to the Atocha train station and walk to museums. Each time I visit Madrid, I stay in a different hotel, but I would return here again.