If you are looking for a nice, spacious and central apartment, you should definetely book this one.
I stayed with a friend for 2 days in Josefs apartment and had an amazing time. The apartment is located in Praha 5, 6 minutes away by tram from the center. You can find supermarkets, restaurants and cafes nearby. On top of that it offers a parking place in the garage under the building. Perfect for us as we arrived by car.
Communication with Josef was really good, he responded within 1 hour to every question.
I can just recommend everyone to choose this apartment for your trip to Prague.