Alex and Kate are ideal hosts. We were given a detailed map of the neighbourhood with grocery stores, places to eat, etc. They were kind enough to arrange for transportation for us too. After checking out, we could drop our luggage at their office, which was open even on a Sunday.
Coming to the house, the location is great, we had to take public transport only once, to see the Prague Castle. All the tourist attractions are walkable. The apartment has a fully equipped kitchen and there's a nice calming view from the balcony. I would highly recommend their place.