My wife and I stayed at Josef's place for 3 nights. the entrancd is through a small mini- mart, which we thought was odd, but was no problem at all and the apartment was really quiet, in fact.
It is extremelywell located, about 5 minutes from the Old Town Square, and 10 minutes from Charles Bridge.
we had trouble with the TV when we arrived buf the people before us had broken the cable by knocking the couch against it. Josef and Natalie were really quick to respond to us and fix it. Josef was also really helpful in arranging transport to the airport, and was prompt and responsive at all times, both through the booking process and our stay.
The apartment
is quite large, especially if it is just the 2 of you, and the bathroom is good.
I am happy to recommend Josef's place when visiting Prague. you won't be disappointed.