Small and nice flat near the center (20 min walk max from the old town) in a good area. We spent there 2 nights.
Ilona was very helpful and accurate.
The flat is on the 2 floor of an old building, there is a dangerous staircase leading to the apartment with narrow wooden stairs and disgusting cat smell (I do like cats, but not the smell, and my boyfriend is allergic, so it was a bad surprise, but in the apartment there isn't any, just in the entrance ). This is not Ilona's bad, this is just the building.
In the apartment, there is everything we needed (except the washing machine or at least a basin, and it wasn't comfortable to do the laundry without, even tiny pieces of clothes like socks). On the contrary, the heater worked well and we could dry everything very quickly. It was warm inside despite a humid weather.
A big and annoying problem is that when someone from us or the neighbors (there are two small flats in the same lobby) went to the toilet and flushed, the gurgling sound and the smell of sanitation appeared in the room. That wasn't comfortable at all! And I must say that we heard every tiny sound from neighbors' apartment, I guess they heard everything that we did or said too.
Apart from that, our stay was decent and relaxing. I would recommend the flat for one night stay for single travelers who are not afraid of noise and need just a place to sleep.