Gregor is a great host, very easy to communicate with and very organised with regards to check in and check out times, so sorting all the logistics was very easy. The flat is really lovely and has such a clever use of space - It is small in terms of surface area (as per usual in Europe), but actually feels really spacious! The three of us were very comfortable, and having the use of two bathrooms is quite a luxury in Europe. The location of the flat is perfect for visiting Berlin, especially if you are particularly interested in the Kreuzberg area. We would very happily stay at Gregor's place again!