Mathias is a very helpful person and has been a great host during my stay in his flat. If you love a quiet and clean place with a good Internet connection, go for Mathias's place. Moreover, the host is away during the day time and comes home late, which means the flat is very much-like on your own and enjoys a great privacy too. Communications with the host is not a problem either - he speaks English. The location is also served by good transport links to travel in and around Berlin. I highly recommend those of you contemplating to book Mathias's flat.