positive points: airbnb is very clean and maribel and her mother are very friendly. the hair dryer is great and the apartment is well ventilated. The bed is comfortable and the kitchen is well equipped. They let us check in early and were sympathetic with breaking a plate and other object for me.
negative points: you can hear the noises of neighbors and the neighborhood is not clean (the dirtiest in madrid we have been). There are also people who are in a nearby square that make a lot of noise (there was even a fight with the arrival of police on motorbikes and cars in one morning). however, at no time were we bothered by them and during Friday and Saturday nights the neighborhood is quite busy.
It is important to emphasize that we do not feel insecure.