As viewers we understand that it is the base of operations for The Faceless Men who serve the Many-Faced God. However they perform their duties secretly and their actions are unbeknownst to the outside world. However the House of Black and White seems to be a fairly prominent structure in the city, so how do the residents of Braavos feel about it? As in, do they understand who resides there and what goes on inside the walls?
Answers from both the show and books are acceptable!