Angel was great - I was already in Buenos Aires and he let me see the apartment beforehand. He also has maps and knowledge of the city if you need it. Although he is not at home very often, he is always contactable on WhatsApp. There is also a cleaner every few days. The room was quite small but it has its own bathroom. It's also quite a safe area and there are 2 metro stations as well as a bus stop right outside the house.