My wife and I stayed at Marek's apartment for 4 night and had a wonderful experience!
Marek was there to welcome us. He is friendly, communicative and a carying host. He supplied us with maps, guides and many hints as for spots of interest, transportation, and restaurants - including menus! He lives next door and is always ready to help.
The apartment itself is wonderful. Cozy, clean, nicely decorated with attention to every detail. It contains all what you might need. Bed is excellent. Location is superb: away from the masses of tourists, within a quiet residential area, with many shops, bars, restaurants around. The tranportation to all parts of the city is easy and efficient, all from a tram and bus station within 2 min walking.
All in all, we had a great time at Marek's place. Highly recommanded!