first of all this is not a private appartement!
this is more like a private hostel with at least 3 rooms to hold 3 seperate travel partys. (shared kitchen and bathroom)
we never met claudius, but an older woman who gave us the keys, and a guy from across the hallway who seems like a housekeeper.
he was very nice and helpful!
there is a "hidden" extra fee/city tax, not much but we would have prefered to know in advance.
all in all this is an okay offer, clean and nice room, good to reach via public transport.
the only real annoyance was when we couldn't enter our room at the time we were told but 4 hours later due to some communication issue with claudius and the woman who had the keys!!