I've been to Vladka's apartment with 8 friends of mine, and, although we were a really big group, there was enough space for everybody. As a matter of fact the apartment is really big, as it is shown in the description pictures. But what was really great is the location: right in the heart of Prague!! We did not need to use any public transport or taxi, we could reach by foot any intersting places or monuments (Wenceslas Square, Old town square, Charle's Bridge). So we really enjoyed our stay at Vladka's apartment, it made our trip to Prague even more enjoyable.