very rarely have we had to call b/c a room wasn't clean (we go 2-3x a year), mostly at the BWVs.
last time was about 2 years ago, when there was noticable mold on the walls in the bathroom. had to call twice, and mousekeeping cleaned it late on the 1st day.
a few years ago at okw, we had quite a bit of crumbs in the LR and kitchen (1 bdrm), and hairbands, broken cookies, etc throughout the villa. we vacuumed it ourselves, but wound up with a
lot of ants in the LR that would not leave (on sofa and small table). we called over 6 times, mousekeeping said they would come but never did (we spoke to the head of mousekeeping). we finally went out and bought ant spray ourselves, and just sprayed the heck out of the place

it did work though.
non-
dvc, we had a wasp nest on our AKL balcony once - that was taken care of within 2 hours. at the poly, we were put a "uninhabitable" room -loads of thick, black mold covering the vents, and along the ceiling (along with a dumpster on our patio). my asthma kicked in quickly (blue lips), but we had to get very assertive to get them to change our room

(as we were vacating the room, the passing suits were very surprised to see guests in it, and very angrily questioned another why anyone was in an "uninhabitable" room)
little things we take care of ourselves, minor wear and tear we ignore, the very infrequent larger issues we bring to the attention of mousekeeping and/or the front desk (and resort manager, if warranted).