We stayed for 6 nights at this Baroque gem and found the location to be excellent, the apartment to be very comfortable (our host even supplied coffee beans for our morning espresso), and Ondrej's communication more than wonderful. For those looking for a great place to stay while exploring Prague, this location provides easy walking distance to the Old Town, Prague Castle, everything in New Town, and the river. We walked everywhere, but public transportation is right out front so a tram is always available.
Despite being in the center of the New Town, and near the major tourist areas, the location is off the street and in a courtyard so the outside noise falls away. The Gardens Restaurant in the courtyard closes fairly early so we never noticed any noise. We also had an excellent dinner there.
Feel secure in staying at Ondrej's property - it's an excellent choice for a wonderful vacation in Prague!