We had a wonderful stay in the apartment. It was super clean, spacious, nicely decorated and comfortable with plenty of amenities. The location was fantastic, in a cool, trendy area with lots of great bars and restaurants. It's also right next to a tram stop and less than 10 mins walk to a connecting tram/underground station which made it perfect for getting around the city easily. We would highly recommend staying here if you are visiting Berlin.
(p.s. there is a great little cafe on the corner with lovely staff called lekker that is definitely worth a visit)