I've never owned a robot vacuum before. When it comes to suction power, I have never been convinced that a self-propelled, freestanding vacuum cleaner would be effective. I was somewhat correct to be concerned. That specific gadget is useless. It is possible for obstructions such as corners, geometrically unreachable areas, "sticky" debris, or simply massive objects to remain in view. A more potent tool is required on a regular basis for weekly "major" cleaning. Without wasting my time, this robot does a good job of "maintaining" cleanliness in between deep cleanings.