We stayed for a week in Holger’s flat while visiting our grown kids (who live close by). Kerstin met us for check in and was wonderfully kind and gracious. The flat exceeded expectations- huge rooms, lots of space to spread out and perfect wifi (we were both working during our stay). Beautiful kitchen, fully equipped, super cozy bedroom and lovely living room and an outdoor balcony (we didn’t use it since it was wintertime but it would be an absolute treat during warmer months). And hands down in the best neighborhood in all of Berlin - we will absolutely be back! Thank you Holger and Kerstin!