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Its noticeable if you have had older models. The suction intensifies when it goes from floor (in my case tile) to carpet. It also picks up a larger amount of dirt than previous models. The brushes are a type of flexible plastic, which in some cases get stuck with longer threads and can tear. They're about 40-50 dollars for a replacement. The unit only comes with a spare side brush and filter.
Sorry, there was a problem. Please try again later.I have found it makes a big difference in picking up crumbs and other light weight dirt. Especially in the kitchen the older one would scatter crumbs, uncooked rice grains, etc. The new one sucks it all up!
Sorry, there was a problem. Please try again later.The Roomba s9 has 40x the suction of the 600-series, so it's going to provide the most thorough clean and be particularly good for deep carpet.
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