Overall - the stay was pleasant and got us into Williamsburg. Few minor grievances below:

Location - This was the first time I've had an airbnb be several blocks from the shaded map proximity in the listing which we expected to be somewhat near 3rd and Bedford, not south of the Bridge and further east. The address shown after we booked was not valid - I'm a planner so this was frustrating to try and figure out where the building actually was in advance. Finally, the host clarified about a day before arrival that the address was incorrect.
Space - The stairs up are very narrow and steep with a nice lean to them and several personal items to dodge in the hallways but it didn't bother us much. It is obviously a very old building with some band-aid upgrades. Everything worked as expected and the apartment did have charm.
Communication - the host uses automated/scheduled messaging. Fine overall but became annoying when some messages and replies were obviously not reaching a human.