Peppa is a very cool host and has been very easy to deal with and convenient with both arrival and departure time. I didn't need her help during the stay but I'm sure she would have loved to help me out if needed.
The apartment is like on the pictures : simple but very fine. Bedrooms are downstairs with the 2 bathrooms, with fine beds.
The place is couple of meters away from gracia and a ten minutes walk from plaza del Sol. It is also couple of minutes from the subway.
If you're looking for a simple place, and a convenient and nice host, go for it !