This is my first robot vacuum cleaner. I have always been skeptical about a self-propelled standalone vacuum cleaner in terms of suction power. To some extent, I am right in my fears. ONLY such a device cannot be used. Corners, geometrically inaccessible places, a little "sticky" garbage or just large - all this can remain in view, incl. lack of visual control. Definitely need a more powerful device in everyday life for weekly "major" cleaning. This robot is good at the task of "maintaining" cleanliness between major cleanings without wasting my time - fact.