I stayed here with a friend and our stay was for the most part comfortable. When we arrived, we called Jan and he met us at the apartment, which is down the street from the train station. The apartment itself is small-ish but big enough for two. Careful, the shower can be a little tricky- make sure the shower nozzle is tight otherwise it easily falls down. The wireless internet works well but our only complaint was finding a place to do laundry.

Overall, our stay in Prague was pretty good. Jan is a great dude who is definitely accommodating and great to work with.