Numa is a very nice place to stay. Comfortable, with enough privacy, especially for them who prefer not to be disturbed by the hotel stuff all the time. I appreciated to have the dishes, wine glasses, wine opener and fridge in the room. The bed was very comfortable and big .) and I loved the huge windows. F-hain is a quarter I really love, so the stay was perfect.
But of course, it was perfect for the price we have paid. In Berlin to sleep for more than 110USD/night I think there could be more service included.
But still I would recommend and maybe come back.