Have the iRobot satisfied now already 2 years in use and am on the whole. I let him daily "suck" by our ground floor and am satisfied with the result. The lighthouses work quite well, unfortunately the battery after about 2 months yet. Even the stairs he recognizes most as "abyss" but sometimes he gets stuck right there and goes into fault mode. After now already 2 years, he recognizes, unfortunately, no longer the bin is full, but you should be emptied once a week and clean it anyway. The Hepa filter I've only changed once and blown out every 2 months to the compressor, so the device can be anyway best cleaning. Whoever the budget will facilitate something and no longer want to dust sows every day, which I can only recommend the iRobot. A full dust Auer he does not replace 100%
