Petr was a wonderful host. He was very responsive to email before our arrival in Prague and was flexible getting us our key upon our later-than-expected arrival at the apartment. The apartment itself couldn't have been in a better location. It was literally steps from Old Town Square and a few minutes from a metro stop, and we were able to walk everywhere we wanted to go. It was clean, large, and well-kept. One word of caution, however: if you are a light sleeper, this apartment may not be for you. This is basically tourist central in a city so outside noise is not exactly surprising and is certainly not within the control of Petr or Tomas. Despite the noise, I would highly recommend this apartment as well as recommend our hosts.