Me and my husband stayed at Petra's studio for three nights, it was an absolutely great place to stay if you are an artistic person and love spacious flat! (We live in London so it is pretty big for us.) It is at the heart of old town centre, and quiet at nights. It's got super market and baker shop around, and very close to AE (Airport Express) dropping point. Petra has been really helpful on answering our questions before we arrived, and she was very kindly showing us the flat when we checked-in. The loo was a little bit cold because it's outside, but we can't complain - the sufficient facility and the convenience makes our holiday at Prague wonderful.