Sven was so professional, clear, and helpful. He made it clear that he was available at any time to assist us. The room was perfect for our group of 5. Ideally situated for bars, cafés, restaurants, shops, and public transport. Access is easy and quick. Every possible day-to-day amenity one needs in the apartment (kettle, coffee pot, ironing board, plenty of storage). As well as a great amount of complimentary things like slippers, teas, sugar, shampoo etc).
Lovely place, lovely host. Can only recommend it to any one going to Berlin.