First thing first... Martin would likely be the best host you have ever met. For us using AriBnB for last 3 years and with over 13 seperate bookings, he certainly tops the list by far in being the most hospitable and friendly host there can be. He made us feel right at home from the time we checked in with frequent (but subtle) followups throughout our stay making sure we were well taken care of. Checkout was equally comfortable with Martin personally dropping one of our passangers off to the trainstation when the Taxi driver refused to take a 5th passanger onboard... absolutely amazing!
Regarding the space itself, its on ground floor with direct access from the building grounds which includes a nice little garden/play area for the kids. The flat itself also has a small private porch area which is quite nice. The flat is an open studio type setup and feels reasonably spacious. We were 2 adults and 3 children and felt quite comfortable.
Bathroom is quite modern and the kitchen is small but adequately equipped for preparing light meals if needed. There is a small area inside the flat for luggage and storage. The flat is quite bright but has sufficient windiw coverings and balckout shutters for maximum shade and privacy.
Location is also top notch as we walked to all the main attractions very easily. We never had any issues with noise.
Overall the flat felt very clean and well looked after. We would certainly stay here if we were to visit Berlin again.
Thanks Martin for the great hospitality confortable.