We had a very easy check-in at 10 pm at night. The team had emailed us directions and instructions to get in beforehand, so that was made super smooth. Once we walked in, we noticed that all the beds were nicely made, the info book was left to us to see and there were a few colds in the fridge! Perfect welcome. We stayed for 5 nights in total and absolutely loved the location. As we attended the film festival we were mainly around Potsdamer Platz & Friedrichstrasse, which were easily accessible by the S-Bahns (we are talking 15 min door-to-door). If you want to see the 'real Berlin', the east-side is easily accessible as well.
The flat consists of a bedroom, a huge living space with TV, sofa table, dining table and of course a fold-up sofa. There is also a decent-sized bathroom and a little but efficient kitchen. Made our stay very homely :)
We left early in the morning, 7 am, and were happy how smooth the check-out was made already. Volkar kept in touch throughout the stay and there were absolutely no issues.
I will definitely be staying here again the next time I come to Berlin! Highly recommend this!