Aggi's place is good. She is very personable and friendly. We had our flight to Berlin cancelled, which meant we arrived on the following day. It was very easy to communicate with Aggi about it and she handled the situation very well.
We only met her once, when we arrived, but she trusted us with everything.
The flat was quiet, nobody disturbed us. The main road is busy, so with the window open, the room can be a bit noisy. However the view from the window is great (it is on the 12th floor). The room is simple, but comfy and quite large with a decent bed. Perfect for couples.
We walked almost everywhere, but it is very close to all the major public transport routes.
All in all, it was perfect for what we wanted.