This studio is very clean, modern, well-equipped, and has everything you need to make your stay comfortable and feel like "home" however long you'll be there. The high ceiling and natural light are really nice. As this studio is on the top floor, you also have access to the beautiful, plant-filled patio that faces Parque Espana. (The patio also has good Wifi, so you can bring your laptop out there to work.)
This studio is close to a rooftop bar that can be open late sometimes, but as a light sleeper, I would just put in some ear plugs for those rare nights, and it was fine. Also, be ready for stairs and good leg workouts. There is no elevator, so if you have trouble taking stairs, this might not be the best place for you.
Anyway, Simon is the best host. He has great, clear communication, and is hospitable, approachable, and always looking for creative and practical ways to upgrade/improve the already amazing space and building. Highly recommend. Muchas gracias, Simon!