Spent three nights at the apartment with my son and a friend.
We enjoyed the fabulous views the apartment affords and the fact it's within walking and tram distance of all the key tourist attractions. There is a Starbucks just a few minutes walk away, the tram up to the castle is at the end of the street and downtown Prague is only 10 mins walk away in reality.
The apartment was really clean and the hosts very responsive. Adam met us at when checking-in and gave us a tour which was welcome. It's spacious and well appointed. Some of the patio furniture shown in the AirBnB photos wasn't out but it didn't detract from our stay overall. The apartment is at the top of the building and does require you to take a flight of steps out of the lift.
Visit a local restaurant called "Czech Slovak" for contemporary local Czech food and Wine, also the brewery at the Monastery. Don't forget to take some local currency for tips etc. Thanks for allowing early check-in/later check-out!