From Around the Web: 20 Fabulous Infographics About Roomba Comparison
http://messiahbysl929.yousher.com/10-things-you-learned-in-kindergarden-that-ll-help-you-with-compare-roomba-models
By popular opinion, the iRobot Roomba collection of house robot hoover seems to be the most effective available. There are several designs to choose from ranging in new cost starting from about $200 to $600 - depending