I have had the S9 for 3 months. I purchased this vacuum over the competitors, mainly the Shark, due to the great reviews it had for picking up animal hair. While it picks up some, it leaves clumps of hair all over the carpeting. Today, like so many others have shared, one of the ends of the rollers broke off during a vacuuming cycle. I could smell it burning. Not pleased with the performance nor the obvious design defect of this $1000 vacuum.