Klaus has been very reactive and welcoming on our arrival in Prague. The flat is perfectly located : 2 min walking from the tram 26/8 to city center (5 min tram to Republik). The place is very enjoyable, warm and cosy with a balcony (knowing that it's on the 6th floor, great vew ;) ). You'll find everything around the area : nice café, creperie, second hand shops, supermarket, Letna park ...
I highly recommend this place if you would like to spend some days in Prague.