While I agree with others responding to this comment, my major complaint with my Roomba and Scooba is the ongoing maintenance. If I don't thoroughly disassemble and clean the robots after every couple uses, they will stop working. Hair and fibers end up wound around the brushes and wheels and quickly stop them from working entirely. My vacuum does not have this issue. My broom does not have this issue. My mop does not have this issue. Honestly, it feels like I spend as much time cleaning my robots as it would take to just vacuum and mop by hand.