I booked this apartment for my sister who had to spend last minute two days in Berlin. The apartment is very cozy, it has everything you need and it is located in a backyard therefore very very quite. The location is beautiful, right in front of the park Viktoriapark in Kreuzberg and surrounded by restaurants, tiny shops, market halls, bars...
Fulvia is a wonderful host, always available for help. I will book for sure again in case any friend/relative will come to Berlin