'ZDNET Recommends': What exactly does it mean? ZDNET's recommendations are based on many hours of testing, research, and comparison shopping. We gather data from the best available sources ...

If you see inaccuracies in our content, please report the mistake via this form. A robot vacuum is a worthwhile investment, but it can still be a lot of money to spend on a household product.

But without it, we don't get that epic showdown between Dom and Wendell, which resulted in the first-ever tie vote for the million dollars—with third-place finisher Laurel breaking it for Wendell.