Javier & Iris's apartment is perfectly located, very close to the metro station "Lavapies". There are a lot of different bars, restaurants and even a good 24h shop nearby. The majority of main sights in Madrid are in 10-15 min walk.
The apartment itself is very clean, comfortable, well equipped, and corresponds to the photos.
The hosts are very welcoming, quick to respond, and always willing to advise you nice locations nearby.
If we go to Madrid anytime in the future, we'll be happy to stay there again.