We had a great time in Prague, the apartment location was perfect and right next to Kafka square. The apartment is beautiful but I was a little disappointed since it wasn't quite as clean as the previous Airbnbs we stayed at during our trip. But nothing major enough for us to want to leave. One suggestion would be since you have to pick up your keys at another location then walk a few blocks to the apartment, it might be easier to just go straight to the apartment with all your bags and have someone you are travelling with wait with your bags while you go get the keys. Then you won't have to drag all your bags through the busy streets after getting the keys.