We were at the Worldmark Anaheim. Its a lovely property and I had points that needed to be burned from cancelled spring trips. The resort was about half full, judging from the lit up windows we could see at night. On previous trips it has been booked solid.
It was not noisy, but I don't know if I'd call it quiet either. The family at the end of the hall from our room had loud-ish kids, but we had 3 teens in our party who can be boisterous when they play games, too.