"I built each of these machines," the man said, noting, "if I bought them, they'd cost over a quarter-million to buy." ...

We put several robot vacuums from Roborock, Eufy, Dreame, and more through a series of mess tests to see which stood out.

Cassidy Horton is a finance writer covering banking, life insurance and business loans. She has worked with top finance brands including NerdWallet, MarketWatch and Consumer Affairs. Cassidy first ...