As an international student who doesn’t speak Spanish at all it was a great experience for me staying at Susana's flat. I stayed for a month. The place is super clean and organised. The neighbourhood was tranquil. 5 mins walk from a big park. 30 mins from the center of Madrid. She and the other tenants were very friendly. I did face some problem communication wise but Google translate solved it. She provided all the things as mentioned here in the app. Towels, sheets and other necessary things. Highly recommended for any international student / Erasmus scholar. The only negative thing I found is that in summer the heat can sometimes become unbearable without an AC. I will blame climate change here.
Overall, this is a first class stay. Loved it.