I am going to rent one nice room in a cosy flat in Berlin normally shared by me and my girlfriend. My brother will stay in the flat in a separate room at the same time. His young son (2 years) might be here from time to time. Very cute boy!
You gonna like the flat because of its lively neighborhood, quietness and cosyness. My room is appropriate for single person or a couple, it's about 18m2 big. The room is furnished. You can spread in the living room too of course :) We have a nice kitchen.