Great stay! The location is fantastic, super quiet (even with our early sleeping schedule) with really good restaurants and bars right next to the spot. The main part of Madrid is about a 20 minute walk, and the train station is about 15 minutes (helpful if you are going to Toledo or Seville).
The best part was that Pedro had maps available and even WhatsApp'd us his own personalized maps with suggested locations and his favorite places to eat. As English speakers with very little Spanish knowledge, this was extra helpful so we could find our way around.
We stayed during the winter, so I can say that it warmed up fairly quickly, but can't speak to the summer conditions.
Overall, I would recommend this to 1-2 people staying in Madrid wanting the local atmosphere.