We had a great time in Berlin while staying in Sorens apartment for 4 nights.

The apartment: was exactly as described, and was perfect for us (two couples). The decor was lovely and it was comfortable.
The location: is set back from the street, in a quiet residential street, in a quiet area. It was only a short uber ride to get to Berlin's main attractions.
Communication: with Soren was easy and check-in/check-out made simple.

I would recommend staying at Soren's apartment and would stay there again.