In my experience, most people care about long waits for elevators, but don't know how many elevators it should take to have short waits.
That's a comparatively technical bit of knowledge. Not hard to understand, but obscure to most people.
I don't know any renters who have ever asked "How many on-site maintenance staff do you have?"
What's the average response time to something wrong in the building, by management?
etc etc.
That is not to suggest people don't care about such things; or would not give them weight if they knew about them.
It's to suggest many people don't know what to ask or how to evaluate such information.
Additionally, in a landlord's market as
@Undead correctly notes, if you find something in the location you want, a size you can work with, in superficially decent condition, at a price you can afford/are willing to pay..............
I'm not sure how far down the wish list the deal-breakers go.
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For sure, doing everything better should, all other things being equal yield higher rent, and lower vacancy..........
But in a market where a miserable building has 2% vacancy or less..........