Overall, we had a good stay at Luiz's place in Madrid. We were only in the area for a few nights but found the closeness to the city center to be helpful, with grocery stores and markets within walking distance. The train station is a short drive from the apartment and the airport is not much further. I should note that the area is in a more touristy part of town, with many hostels nearby. This is a bonus for some travelers and less so for others, depending on the person.
We had some issues with noise from other tenants at night which made sleep difficult, and when we arrived we did not have enough sheets for our party. Fortunately Luiz and his team were very responsive and helpful and quickly saw to our needs.
The apartment is very cute and we loved the tasteful decor and thoughtful amenities such as Netflix, hair dryer, washer and dryer, etc. We would have appreciated a little more attention to cleanliness but it was not a huge issue. Though on the smaller side, the space was used well and proved to be a cozy spot in the middle of the bustle of Madrid.