I blame part of my experience on getting off on the wrong foot. I had failed to send Kristina and Kyle my estimated time of arrival, so when I got there (an hour after the general check-in time), the room wasn't ready. Kyle immediately took care of that, so that was fine with me.
Nevertheless, the cleanliness of the apartment had some room for improvement. When I started settling in, I noticed that the previous guest's trash both in the room and the bathroom had not been taken out and there were still hair in the shower. Plates, pots etc. in the kitchen were fine, but the surfaces weren't wiped and the downstairs floor looked messy. In their ad, Kristina and Kyle ask for understanding for the latter and some people probably wouldn't mind, but it's not my cup of tea.
To be fair, the apartment is in great walking distance to the university and the room is furnished as advertised plus has good temperature. Also, Kyle is very friendly (I didn't meet Kristina) and offered free water bottles. So if you're not too picky about cleanliness, the room might be just fine for you.