I highly recommend staying at Vincent's apartment in Berlin, especially if you are the kind of traveller who would like to enjoy a local perspective of the city and people. Vincent is a very hospitable person, always respectful and helpful. He also works at a cafe/restaurant nearby, with which is a great place for dinner. The apartment is very clean and quiet for anyone who needs to get work done, with a good desk and internet access. If visiting Berlin in the future I would definitely stay at Vincent's place if it is available.