This set is good for the price. Filters and vacuum bags work just as well as more expensive iRobot versions. The green roller brushes fit me well and last as well as the iRobot brushes (we have two dogs and three unkempt kids so none of them last particularly long so cheaper replacement parts are needed!). I think the green roller brushes are louder than iRobot's. This wasn't a deal breaker for me but be aware. The edge sweeping brushes were the only thing that didn't work for me. The replacement brush was screwed on well, but came loose after a few minutes of brushing. It was frustrating. This doesn't happen with the iRobot version, so I think the problem is with the brushes themselves in this set. Even with the edge brushes, this set cost me its low price.
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