Pros:
Doorman was super friendly and helpful, landlord was usually responsive. Heating has improved (sometimes blasting) after new super has taken over.
Cons:
Rental process is long with a lot of documents needed, not the newest building, not the best maintained building including the occasional roach sighting and hearing mice in the walls. Previous super was awful.
Advice to owner:
Get a full time doorman and clean up the place.