Couldn't wait until the refurb Dyson from Overstock.com came in, until it was finally here. I took it out of the box and one of the plastic screws holding the small brush attachment was broken. Didn't matter, I knew the vac was worth every penny. I assembled it and plugged it in and it sounded terrible. When the brush is stuck or there's debris in the head, the clutch disengages. It was new out of the box -- no debris in the unit. I called Dyson and they explained what I needed to do to try and align the brush bar. Tried three times to fix the new machine and ended up dropping it off at the local Dyson repair. The repair person found a piece of plastic in the head that was not removed and this was causing the clutch to disengage. After repair the vac works fine. I love it! This was a refurb unit and it was not tested before it was packaged. Dyson also shipped a replacement cover for the attachment that arrived broken.