The iRobot Roomba i7+ used a grid pattern to impressively ... first but its dirt detect mode was activated when it sensed the mess and it traveled back and forth spot cleaning before moving ...

At a glance Expert's Rating Pros ・Deep scrub mode ・Cleans more in dirty areas ・Mop stored on top ・Carpet boost Cons ・Expensive ・Dock has large footprint ・Some app features not obvious Our Verdict ...