Pros:
Clean building, great units, great well maintained amenities, 24 hour very helpful doorman service, very fast with maintenance requests -- pretty much anything "daily basis" things are top notch.
Cons:
Managment and emergency response are not great (non "daily basis" things).
Management is very very very slow to respond, generally unreachable and (at least for us, historically) very unhelpful. Whether we're asking about moving to a different unit in the building, asking for rent extensions, trying to figure out a lease renewal situation -- expect whoever it is you're supposed to be contacting to not pick up your calls, take 1-3 weeks to respond, and not be accommodating of whatever it is you need.
We had a fire in the building, laundry machines all burnt down and air quality throughout building, especially on third floor was quite bad for an extended period and the building's main response overall was "it's not that bad, stop messaging us". No help with laundry, no rent reductions, no early lease breaks for folks with health conditions etc.
Advice to owner:
Staff is great, management is bad. Stop not helping people.