The filters do not pick up a lot of debris nor do they hold much. If you only used these once a week, it'd be a decent price.  Otherwise, I would not waste my time. When using in conjunction with the cleaner, the pads start to flop around and make it very difficult to actually clean something, given that it only attaches at the filter side.  It flops around and can get stuck under the pad, which risks scratching your floors.