This place is great! Everything that you might need in a city like Berlin is within walking distance from the apartment: subway stations, grocery stores, pharmacies, restaurants, bars, clothing stores... there's even a theater around the corner! Getting to some of the main spots for tourism is also easy from this place, either walking or by public transportation. This includes the Brandenburg Gate, one of the most emblematic monuments in the city and a meeting point where you can just show up in the morning and sign up for tours if you're into that.
The place was also clean and really good-taste decorated. We didn't get to meet our host in person, but the communication was impeccable and Özgür, the co-host, was nice and helpful at all times, always with a fresh and cheerful attitude.
I would totally recommend this place!