We can only advise against this accommodation and warn against the landlord. The apartment is grossly overpriced (we only booked because another landlord, who had confirmed long before, completely unexpectedly cancelled three days before arrival from Germany, and there was no other option in Boston for our family of five) and it needs a make over.
There are completely excessive rules that you can't escape without risking a full-fee cancellation. Rules and description suggest that it is a luxury condo building. In fact, it is a kind of dormitory for primarily Asian students and the like. You are effectively forced to pay a deposit outside of Airbnb, which is not refunded with a flimsy accusation.
Many negative reviews are obscured by several quick follow-up positive reviews, presumably via short term cross rentals. Pretty sure the alleged landlord couple including photo and real estate background is also fake. It is noticeable that Airbnb does nothing about it. If I really don't get my deposit back, this is a case for my lawyer.