My experience and feedback is as follows:
Pro:
-the location is very clean and well-kept
-the area is not so crowded/touristy
-the furniture is vintage and gives it something different
Contra:
-breakfast contains only toast, butter, jam, tea and coffee, nothing special... I don't know if that's how they eat in Spain or not, but I preferred to buy my own food (eggs, ham, etc.)
-when I arrived, I was told to be careful how I consume electricity (lights, heating by electricity) and Marta was following me to see if I turned off the light in the hallway, kitchen, even if I was coming back in 3-5 minutes(I'm talking strictly about when I was in the house and needed light). The same with the water from the sink, she told me how to wash the dishes and reuse the water used for other dishes.
I understood the bills are high, maybe they should increase the value of a night on airbnb and not follow me to see if I turned off the light or if I use a lot of water when I wash something.