I have four of these Sanitaires in my office and they are workhorses! However, newer models come with a plastic belt sleeve and brittle aluminum rivets on the chrome beater that can quickly fall apart and ruin your carpet - unlike the hard chrome beaters on older models. Who designs these things? Luckily I'm good enough at nailing the bushings together with steel nails and epoxy to get them working as they were originally supposed to. Sorry the new update of these units is so pathetic.