以下是从consumer report 转贴。
Although you can't count on them for deep-cleaning carpets, recommended robotic vacuums did best at cleaning surface litter off carpets and bare floors. They were also the easiest to set up, program, and clean.
Robotic Vacuums
Pros: Robotic vacuums do the grunge work while you relax. In uncluttered rooms, a robotic can touch up between regular manual vacuuming sessions. The better models can find their way out of tight spots and around extension cords. Many models can be controlled via a smartphone app.
Cons: No robotic vacuum can match the deep cleaning you’ll get from the best uprights and canisters. These vacuums are not the ideal choice if you have shag carpeting or area rugs.