The host should have been more upfront in the description and included that the 'private' room is a though fare to the only outside area so roommates will expect to come in and out of the room and that it's a smoking apartment, all the roommates smoke inside. The bedrooms are frequently sublet so there are often other people in the rooms and sleeping on the couches. A few of the roommates work from home from the living area and weren't very friendly. After one roommate rudely demanded to come in to my room (after I had said I was sick and needed sleep and privacy) I left. The host refused to give me a refund for my remaining days, Airbnb mediated and I was given a refund.
This apartment was definitely not for me and I wouldn't stay in this particular area of Crown Heights again.