Pros:
Beautiful pre war apartments and original details
Friendly neighbors aside from one that lives pretty dirty
They vacuum the hallway carpets every week
Great location near central park
Cons:
Rent increased an insane amount for an old walk-up apartment with no laundry in the building or an updated kitchen, although we had been living there for 3 years
Advice to owner:
Respect tenants that have been there awhile and have kept the apartment in good shape