Monica responded quickly at short notice to my request, and everything was advertised. The location is excellent and the view from the bedroom on the 9th floor was superb through the wide opening windows. Be aware though that the room is quite small and although ok for a couple is really best just as a place to spend the night. The separate entrance was a nice touch but access to the dedicated bathroom was through shared areas.
If this is not an issue then I can certainly recommend Monica's place as a good way to see central Berlin