We stayed at this flat for a few days while visiting Berlin. It is as advertised with the exception that there is only one air conditioning unit in one of the rooms. They provided fans for the rest of the unit, but having more air conditioners would have been welcome. The location can't be beat - it is literally right across the street from Berlin Nordbahnof, right next door to the Castle Bar. There are some nice restaurants and a large supermarket < 5 minutes walk. There is a large park with playgrounds and a splash pad, which our son appreciated. Overall, it was a really nice stay! Checkin was super easy and the reception and staff were very accommodating!