I stayed at Jan's loft bedroom for 14 days when I was finding a place for long term. In summary, Jan is a helpful host, however due to the length and purpose of my stay it was not the best match. For some reasons there were a lot of issues that happened during my stay. (maybe just my luck?)

Pros: Jan is easy-going and quick to act to solve all the problems. I had wifi issues for a couple of days, after he provided an ethernet cable to use. He's generous in sharing food and drinks and made dinner and snacks for a few times. I like his kitchen, bathroom and neighborhood. What you see is what you get. When I was leaving he generously offered to extend my stay (I didn't take it).

Cons: He smokes in the kitchen so I didn't use the kitchen and living room as often as I wanted. Since I was not a traveller and mostly stay in this flat, that was a major setback. If I was travelling and only using the space to sleep that wouldn't have been a big issue. But my fault for not realizing this beforehand.

Some issues was out of his control but impacted my experience:
Heater was down a few times. One day it leaked in the flat from the snow. Persistent wifi issues for the first week. Could be just my laptop, and other guests probably wouldn't encounter the heater issues again.

If you're travelling and want to stay somewhere central short-term, (or if you smoke), this is a good choice.