Petr's place is located close to the center. During my visit in Prague I didn't need to take any public transport from the accomodation to the center since it was so close. I was warmly welcomed to Petr's house and if you need anything Petr and Denisa (co-host with Petr) are there to help you. The room and bathroom was very clean. The basic amenities are included in the kitchen .
Denisa's instruction on reaching the place was helpful , unlike other place so I didn't get lost on my way.