I recommend Katharina's bnb!
Her house is perfect!!
The Location is good. So we can go to tourist attracion and There are trendy cafes, design store ,volks park and mauer park.
The bed is king size. And there are everything you need.
And There is soooo clean,comfortable.
Although There are about 3 to 4 flights of staircase to her apartment. So you have to be a little strong if you've got huge luggages.
Katharina was also kind and was always quick to respond to my queries.
I enjoyed my stay in Berlin,thanks to her