Not so charming
Pros
Pre war details. Backyard access. Quiet street
Cons
Noise. From all angles. All the time. Thin walls and floors. Sketchy activity and tenants
Owner makes a lot of dumb choices
Pros
He is very lax as far as what you do in your own apartment.
Cons
Doesn't repair things that need it like the fire escape which is currently zip tied together, but then will add an entire deck to his own unit over a weekend. Tiles have been cracked and crumbling in apartment for years and they literally sent a guy over with a hammer to smash them more and throw some grout in the cracks so they would lay more flat. They are once again completely crumbling because that's just not how you fix a floor. He forgot to put an exit point from the backyard as well and a tenant had to point out to him that there was no way to get out in a fire. Especially since this building literally did already catch fire a few years ago. He's not a bad guy necessarily, he's just kind of dumb.
Advice to the owners
Fix the fire escape that one is pretty egregious