We did not meet Jan until the day of our departure. We communicated via email, to which Jan always responded promptly.
The apartment is very central and in close walking distance to all major tourist attractions.
It appeared very impersonal and just like four walls with furniture placed in it. It looked out onto a dirty car park, the back of another apartment building, which people used regularly to shoot up drugs and to use as a toilet. Not a pleasant site to walk past to get into the apartment.
We rented Jan's garage, but were not given the key for it. That meant that we had to contact Jan or jan' helper each time we wanted to take it out, a very inconvenient option, so we decided to keep it locked up for the duration of our stay.