IRobot Vacuum and Mop Review In contrast to some robot vacuums this one isn't afraid to go on the stairs. But, just like any other mop or vacuum it is prone to getting blocked by debris such as the stray tennis shoes, ribbons, play jewelry, yarn, or other stray objects. https://robot-vacuum-mop94564.designertoblog.com/59181561/black-friday-robot-vacuum-deals-it-s-not-as-difficult-as-you-think