Nice apartment with very nice bathroom, bed was comfortable (we did not try out the sofa bed). Khristinya communicated well and responded quickly to questions. The apartment is located in a nice area, convenient to shops, restaurants, and the metro station.
The only downside was that our second night (Friday), there was a party going on nearby with loud music. It was very hot that night, so we had the windows open, and the music kept us up until it ended at around midnight. A fan would be helpful.