A lovely flat in a great location. The communication with Klaus was excellent and he was very helpful and accommodating. The flat is perfect for two people. It is very clean, nicely decorated and comfortable. The kitchen is well stocked with all the basics. Although it is not right in the city centre, it is in a very nice neighbourhood with plenty of shops, bars, restaurants nearby and it is a few minutes walk from a nice park and the old town is still easy to get to. For me this was much more preferable than staying the noisier, touristic centre.
Overall I would highly recommend Klaus' flat - absolutely perfect for a romantic weekend in Prague.