I purchased the Shark Performance Lift-Away Upright Vacuum in November of 2020 and registered the product the same month. After less than one year of normal use, the ball bearings for the roller brush dislodged and were found all over the floor. I called Shark customer service, and they advised that for over $100 plus tax and shipping they would send out a new head assembly. I can't believe that I would have to replace this particular part in just over a year. I would not recommend this product or their customer service dept. The Model is UV700 Series, SN:11K310324F8