Me and my family really enjoyed staying at Lukas place. Our room as well as whole apartment was really nice, with everything what you need and what is more important, it was super clean. We were lucky enough and during our stay had the whole apartment by ourselves. From the very beginning, Lukas was very attentive host. He replied quickly and was really nice. Apartment itself is not located in the center. However, there is a metro station from where train directly goes to the heart of the center. It takes approximately 12-15 min to go to the metro station on foot. However, Surroundings of the place is really nice and calm, so walking distance was the pleasure for me and my parents.
I would give lukas my best recommendations! It is definitely worth staying in his place.