I purchased this item and the power head did not work upon arrival. I called Dyson that day, and they told me to take it to the authorized repair shop. Since I have had a Dyson before, and they did warranty work on it before, I didn't think much of this. FOUR weeks later, the repair shop had received THREE separate orders from from Dyson on how to fix this machine. They were then asked to ship it back to Dyson. I called Dyson and asked if they could credit me, or offer me a new one, since it would take at least TWO weeks according to customer service for them to decide what they were going to do. They actually told the shop that this was the first time this happened to this model, and after I logged onto Consumer Reports and read the review, I found that this powerhead/computer issue is not uncommon at all. I had no vacuum for a month, I wasn't going to wait another one. This machine is a LEMON, which I realize can happen to any manufacturer, but customer service at Dyson should have made it right, and they didn't. I immediately called Overstock, and they made it right! The rep was not only understanding, but completely professional, and was quick to suggest options. I will never buy another Dyson, no sense in a warranty if you only are going to have a vacuum for half the year! I will continue to buy from Overstock without fear.