I really liked my stay at Blanca's place! Blanca is really welcoming, friendly and understanding (e.g. with my later check-in due to a delayed flight).
Communication with her was clear and smooth. She let me use the common areas freely (patio, living room, fridge, kitchen, etc.). The place was clean, and everything was just as the pictures promised.
I also found the location of the place to be adequate. By using metro line 6, I managed to reach my daily destination at Paseo de la Castellana very quickly.
In general, I would like to remark that this was a great experience! You will not regret staying with Blanca :).