This is solid Four-Star Airbnb. The flat is in a good location and reasonably comfortable. But it hasn't been loved and kept up and is looking tired: broken in some places. I had to buy some basic things like toilet roll, bin bags, a sharp knife and a chopping board to make meals. I never met Jan, but the check in process was easy and the location excellent. I would consider staying here again if I was in Prague.
I have given it only three stars as, during my stay, the entire compound was a noisy, dirty building site. Constant noise of JCBs and heavy machinery from 7am-6pm 6-days a week and all paths to the building covered in mud. Since the flat was advertised as a "quiet" place away from the centre, I feel I should have been forewarned so I could cancel my booking if I wanted. When I messaged Jan about it, he didn't reply or engage with me. This spoiled what would otherwise have been a perfectly good, albeit rough around the edges and basic, Airbnb.