The flat is nice, clean and confortable enough for a short stay. I liked the location. Vaselinka was helpful, friendly and waited for us at the flat as agreed. We were there during a cold viennese december. The heater (that you can control with a thermostat) worked great. But (and this is my only criticism, and the main reason for 4 stars instead of 5) the bed covers were thin (I would say that they were summer covers) so we really needed the heater on during the whole night. And the bedroom radiator is close to the head of the bed. I would really prefer a warmer cover and the heater off (or set to a lower temperature) during the night instead of a radiator close to my head during the night.