This apartment was the perfect choice for my one-month staying in Berlin.
First of all, Ben is a wonderful host - made a nice welcoming, and for the rest of the staying always made sure everything is alright and if something is needed.
Sharing space with him was not a problem at all. I enjoyed his company. Even cute little puppy Momo was quiet as a mouse.
As for the apartment itself - Although pretty small, it had everything I needed - a big desk for work, a kitchen fully equipped to cook (but some people may need a bigger dinning area), a cheap supermarket just across the street, a nice peaceful terrace where you can have breakfast or just chill, plenty of storage space, washing machine and always had hot water in the shower. Great light during the day.
The neighborhood was ver quiet most of the time. the locals are nice people but not always speak english very well, as typical east berliners. I found there some nice cafes, barbershop and stores. for everything else I just got on the tram and in 10-15 minutes I was in Mitte area. The best thing around was the Weissensee lake and park near by - a great place for walk, run or just sit with a drink and a book by the lake.
Over all it was a great choice of apartment, host and location for a wonderful spring time vacation. It was also pretty easy to navigate there from Schönefeld airport.