Pros:
I lived in this building for five years. The apartment itself was beautiful -- spacious, lots of big windows, updated cabinetry, and stainless steel appliances. The laundry in the building was also usually very clean and well managed. I very rarely had an issues with pests since the management sent an exterminator around once a month for optional treatments. Super was also very responsive and fixed things within a reasonable time frame.
Cons:
The only con of living here, and it's not necessarily management's fault: our packages kept getting stolen. Such is the risk of living in a building without a door attendant though.
Advice to owner:
Keep it up, especially the pest control!