This was a great idea for myself due to my illness and the many animals that we have. It works so perfectly on our hardwood floors and also on our berbur (sp) carpeting as well. I have waited for the price on this to get down to a more affordable cost and when it did, I couldn't wait to get it. Even my husband loves the idea of it and how well it cleans. He actually sets it and lets it go. I really works better than I could even have guessed. Thank God for this invention. My illness is severe and I cannot do the normal household cleaning without a lot of pain. But with this my life just became 60% cleaner and less stressful also.. It drove me crazy to look at all the hair and knowing I couldn't really do anything about it without sweeping daily. At least now the floors look awesome on a daily basis and I don't feel like my friends and family think I am lazy. GOD BLESS THIS ROBOT VACUUM. It's truly worth the money.