We had a really nice stay at Marina's apartment. The place was neat and clean, and check in was seamless via the lockbox.
The apartment has an excellent location, half way (~10 minutes or less by walk) to Wenceslas square and Old Town square, and is close to a major shopping mall (Palladium), a Lokal and many other restaurants. Marina was a great host and helped us with a few requests that we had. Great stay overall.