it was a nice stay, where one had privacy, despite the shared bathroom. the accommodation was a little bit too far away from the center but the good thing is that there is a bus stop almost 1 minute walk from the house and tram stop 5 minutes. With bike, U4 is perfectly reachable in less than 10 minutes. Although never got to see Konstantin, we met the dad once, who seemed very polite, kind and accommodating. We got all our questions answered literally within seconds over the app. Check-in and check-out were also very flexible.