The main thing this apartment has going for it is it's location. If you plan on just speeding and leaving your stuff to go out in the city, then this is a good place to stay. It is in between Wenceslas square and old town square and close to the train station. Jan was quite nice and met us earlier than expected.
If you are looking for a place where you might spend some time in the room, he has plenty of other flats to rent that may be better.