It does come at a hefty price, and there are cheaper models such as the Shark PowerDetect, that can do a decent job. However, if you're after a splurge buy, and want top-notch results each time, we would recommend the investment. We've tested many robot vacuums at Tom's Guide. https://pr7bookmark.com/story19677752/como-automatic-vacuum-cleaners-voc%C3%AA-pode-economizar-tempo-esfor%C3%A7o-e-dinheiro