Communication with Mark was very easy. Conveniently located near the metro station and there was a lift in the building so no dragging suitcases upstairs. We were greeted by Karolina and she was amazing! Explained everything perfectly. Karolina even let us print off some tickets we had misplaced during our trip. Check in and out was very smooth. The apartment is a real gem and really felt like home. A must stay in Prague!