Robot Vacuum Cleaner recommends Roomba 790 as the top of the line robot vacuum cleaners and comes with all the bells the whistles. Questions that might be asked are: 1)Is a robot vacuum cleaner right for me? 2)Should I go for the 790 over the 780 or 770? Let me address question (1) first: Is the Irobot Roomba right for me? My thoughts on the Roombas are this. It is a great little robot vacuum cleaner but it isn?t perfect. Here are the pros and cons as I see them: Pros: It?s an automated vacuum.