This unit is on the streetside so you get a lot of the street traffic and passerbys. I was able to hear the neighbors as well. The walls seem a bit thin and the door does not have a separate bolt or lock so it does feel a bit flimsy. The main door to the building however is quite secure and there‘s a 24 hour guard that makes sure only verified guests are coming through.
The personal touches are always nice through Casai.