We loved staying at Bernd's, his very large flat is very comfortable and full of great books. He is a great host, combined with his knowledge. He obviously likes to entertain. Loved the kitchen, which like the rest of the flat has lots of charm, it was lovely to have a place to cook some meals, but it's the coziest room in the place. The flat is in an old Berlin building, a 2nd floor walk-up, it has bakery, grocers and evrything you need nearby.
The only drawback, is only 1 bathroom.
We will stay w Bernd when we go back to Berlin.