My trusty 2006 Roomba Discovery, still regularly cleaning my workshop. I've repaired him several times over the years, and have just replaced some MOSFETs and transistors, but he's still reliable and hard
iRobot Roomba 880 review: This bot leaves the competition in the dust - CNET
Amazon to Buy Vacuum Maker iRobot for Roughly $1.7 Billion - Fort Worth Inc.