This place is perfect for a long term stay (2-4 weeks), but if it is a short trip (2-5 days) you are better off paying more to stay close to the Central Madrid.
While everything is walkable, it may be more than people are willing to do. The public transportation is great, but does take some coordination, so plan accordingly.
Overall, Dan was very responsive and was awesome at following up on questions and clarifying about the checking-in/checking-out process.
His place was quiet, modern with a huge benefit of having a kitchen. Lastly the added bonus of having a small patio to sit around in the morning for coffee or tea was a major win for me personally.
This place makes you feel like you are truly living in Madrid. Would recommend others to give it a stay.