Stayed in Renan's apartment for a holiday for 8 people - it had more than enough space (with 2 on the sofa bed). The location is perfect, so near to the center and relatively safe. Do expect Renan to be warm and friendly - he even gave us 2 bottles of wine and recommended us to a dinner place on our first day in Madrid. It turned out to be the best restaurant we've went to during our whole stay in Spain (he even walked us there!)

the restaurant is called La Pescaderia, just within a 5 min walk of the apartment ;)