Are over-the-door shoe organizers actually useful, or do they sag?

Reviewer consensus is split. Verified-purchase reviewers on Amazon and commenters in r/organizing like them for sandals, flats, and kids' shoes, but threads in r/organizing and r/ProductQuery repeatedly flag two issues: pocket width is too narrow for men's size 10+ shoes, and heavier sneakers cause the bottom to sag and push into the door frame. Mesh and clear-PVC pockets are best for light footwear, not boots.