Modern slumlord
Pros
They honestly didn't really do much I'd consider nice. Best part about the building is that it's close to the subway and nearby neighborhoods.
Cons
We had to hound them every single winter to turn on the heat. Mice were a regular issue, and they did nothing to solve it other than sending an exterminator around every once in a blue moon. Lots of smokers, both in apartments and in the hallways, landlord seemed unconcerned and unhelpful, even during COVID. Lots of package theft. Lots of untreated mold across the building. Windows and doors are terrible and do not seal the apartments well.
Advice to the owners
Be proactive in fixing things and listen to your tenants - you'd certainly have less turnover.