I had issues within a month of buying their vacuum, and their support system dragged out repairs for months. When I returned the product expecting a refund, they refused to honor it. The companys service is slow, unprofessional, and full of contradictions. I wouldnt recommend Dreame to anyone looking for reliability. https://www.reddit.com/r/RobotVacuums/comments/1mwk34p/dreame_is_a_scam/