Old woman

Looking for a room, I visited the apartment of an old woman today. I could rent a room for 1500 Yuan and use bathrooms, kitchen, living room with her and another person that might move in. The good thing: She doesn’t speak either German or English so I’d be forced to learn Chinese. And she asked if I could cook and when I said not Chinese food, she said she could. The apartment also looks very nice and the price is good. But what if someone wants to visit me or I come home late?