We stayed at Marek's place for 3 nights and it was fantastic! The location was brilliant- just a 10 minute walk from the central train station. Once at the apartment, it was only 10 minutes to walk to The Old Town, 20 minutes to walk to The Prague Castle- and just 2 minutes to walk to the nearest metro station and supermarket.
The apartment was clean and tastefully furnished, with some awesome quirky light fittings.
Communication with Marek was always prompt and helpful.
I would highly recommend staying here to anyone who is looking for a warm, safe, secure and central place in Prague. Thanks so much Marek :)