Mareks place was perfect for us mainly because of it's size! Especially since there were enough real beds for the five of us which is difficult to find otherwise. It's a great, clean apartment with lots of natural light. I didn't contact Marek during the visit but that's always good since it means there were no problems at all. The only thing is that I would like to stay closer to the city centre next time I visit Prague (and I WILL come back) since we spent most of our time there anyway, but that's just a personal preference. If you value a calm neighbourhood more than this is perfect.