Poor office cleaning rarely looks dramatic. It looks like coffee rings on the breakout bench, crumbs along the skirting, a meeting room whiteboard nobody has wiped in weeks and the hand towel dispenser empty by lunchtime on Thursday.
Each slip is small, but someone has to field the complaints, and it's usually the office or facilities manager. In multi-tenant towers it's harder again: the tenant blames the building, the building blames the contractor, and the issue sits there.
Most teams want two things. A cleaner who works through the whole scope on every visit, and a named contact who answers when it doesn't happen.