We stayed for 3 nights (3 adults). It's too small really for 3 adults, as there is a lack of storage space meaning that we couldn't really unpack properly.
The apartment is in a great central location, and next to the metro station. Sasa is very good at communicating and was very helpful when we had a couple of issues with the electric and boiler not working (there are 2 buttons in the bathroom that control these and we must have accidentally switched them off, or the guests before us may have done so. But when I contacted Sasa she got back in touch with me straight away to tell me how to turn them on).
We all agreed that the beds were very comfy.
There were a couple of things broken in the apartment - the kettle had a hole in the back so we couldn't use that, and the ironing board was also broken although we were able to use it with some difficulty.