Stayed 5 nights at Bettinàs. Nice place located in Kreuzberg. Some people may be uncomfortable going back to the flat at night - through/by a dark park inhabited by alcohol (etc...!)-loving residents.
Place itself is quite small but clean & warm. And as we were out most of the time it was fine for the two of us. The only suggestion for improvements : please get new pillows :-)
Thank you for a pleasant stay.