This place is advertised as an entire apartment, but it's actually the top floor of a house where other people seem to be living. The main staircase leads directly into the kitchen, with no private door or lock apart from the front door to the entire house. It feels like anyone who lives there could just pop up if they wanted to (not that they did), but I think this layout needs to be a little clearer before booking.
Apart from that, this is a really beautiful place in a great location. There's lots of lovely places to eat and drink nearby, and from the queries we had during our stay Aspen was helpful and responded quickly.