Rok was a very nice and accommodating host. We arrived at 11 pm which was no problem: we were received very politely by our host. The flat was clean, the room was nice, just a small inconvenient: the street in front our our room was rather loud because of traffic (tram and cars) so if you are sensitive to noise, you should consider bringing some earplugs or take a room in the back. :) Other than that, very recommendable!