We had a few troubles before arriving and weren't sure if we would make it, but the communication beforehand was always super nice and easy!
Check in was also extremely uncomplicated. The apartment is in a good location in my opinion and you have everything you need in walking distance. The old town square is around 30 min by foot away, which we also thought was absolutely fine as Prague is a nice city.
The apartment itself is perfect for a small group of friends or two couples with two bedroom and two bathrooms. Everything was clean, nicely decorated and in general a very lovely place to stay.
Definitely would recommend:)