We loved our stay at Eduardo's place. It's gotta be one of the most unique Airbnbs we've stayed at and really made our time in Madrid special. The apartment is very clean and stylishly decorated. Eduardo is very hospitable and regularly responded to any message within minutes with helpful advice. Although there are four rooms in the Airbnb, we never ran into any issues with needing to wait for a toilet or shower. Of note, you are in the basement so it is a bit musty and damp, but we were expecting that, and Eduardo does all he can to account for it (air purifier, fan, air freshener). The benefits of sleeping in a basement: 1) Soundproofing was very good (we slept like babies) and 2) the room is naturally cool. WiFi was very good. We recommend staying here if you're in Madrid!