Had a wonderful experience staying here!
Oleg is one of the most prompt and helpful hosts. We got delayed in arriving at the house by a day due to flight delay issue and he was always available and helpful and also offered to help us. Great host and very prompt.
The house itself is just 200m away from the old town square (Astronomical clock, Chapel) and 500m away from Charles bridge. One can hear the clock striking from the balcony at night!
We walked mostly and did not need to take a tram/metro ride, but those are also fairly close from the house.
The house itself is vintage construction so one should not be expecting a lift - which Oleg has clearly mentioned in his review. We had a lot of luggage and it took us 5-10 minutes to go up and down while checking in or checking out.
All in all - a great experience!