The Apartment looks nice, is spacious enough for 2 people and has everything you need. It's in a neat location (next to a park) and close to a bus stop and supermarket. You can reach the Old Town in 15 min and Malá Strana in about 22 min.
In addition to that you get a free parking spot in a locked garage with easy access to an elevator stopping right in front of your apartment door.
The communication with the apartment manager worked great and was very easy, leaving you with no worries what so ever on your wonderful Prague vacation.