I stayed at Marek's apartment while visiting Prague with my daughter. The apartment was comfortable, well equipped, centrally located with quick access to transit, stores, restaurants and bars. It was also within walking distance to the old town although we tended to opt for the train and metro since service frequency was excellent.
Marek was a wonderful host greeting us on our arrival and giving us some great tips on what to see and do and how to get around the city. Communication was excellent.
Highly recommend staying here.