Mimi's apartment is very spacious for two people and the bed was comfortable. I'm sure it would suit 4 people also. The windows/doors are great when it was so warm in Berlin and the balcony is a real bonus. There's a bakery just down the street with delicious croissants and bread!! It's an easy 5 minute walk to the U/S trains at Warschauer Straße, also bus and tram stops and only 25-40 mins door-to-door from the airport (depending on whether you get the express train or not) . Everywhere is so easy to get to in Berlin using public transport and for the summer months you can buy a monthly pass for €9 which you can use on all transport and anywhere in Germany.
We were visiting two of our sons who live in Berlin and Mimi's place was very close to them. It is a lovely area, very safe and lots of places to get a bite to eat and a drink. Thanks Mimi, we will definitely be back.