The appartment is generally ok (has everything reqiored for comfortable stay); although, the room is not too large - so the space is marginally enough for two people. 6th floor gives a really nice view over the rooftops and of the Petrin on the other side of Vltava. The best thing - it is in vicinity of everything (10 min to center, 5 min to metro or to Billa), while not in the center flooded by the tourists. A good choice overall.