So it clogs all the time and the filter clean out is dusty and nasty and hard. The bags where the debris accumulate can't be reused and are about 1/10th of a cubic foot (teeny tiny) and cost $7 each. The unit can do maybe 700 ft2 without recharging and on anything but a wide open floor will be stuck and inoperable while the battery drains. An embarrassment from an engineering standpoint. A bad idea poorly executed.