We had a wonderful stay in Dietrich's apartment. Dietrich is very accommodating, attentive and easily contacted. He messaged prior to our stay with all the information we needed, and sent us a guide with tips on where to visit and places to eat/drink, which was a lovely touch. He answered any questions we had in a quick time frame and we always felt like he was there to help when needed.
The apartment was absolutely beautiful and very clean. It was just like the photos, and even exceeded our expectations. We stayed for one week and it really felt like home for that week. Very cosy and comfortable.
There is a shop and a bar right beside the apartment (lovely locals) and there is a pharmacy, restaurants and more shops just round the corner. Lovely area, and felt very safe at all times.
There is a tram stop very close, just round the corner and top of that street (3 min walk) which you can hop on to head further into the city or station back to the airport, it was really handy.
100% recommend this apartment for your stay in Berlin, and we will definitely be back to one of Dietrich's apartments.