Bests & Worsts Reviews from Amazon

I own both the bObi in white and a Roomba 650. BObi is definitely a quieter and more powerful vacuum than the Roomba. It has many features which are not found on Roombas within this price point (HEPA filter, UV light, remote-control cleaning, etc. -- Roombas with some of these features retail for around $500, $800, or more) and which make this a serious competitor. The waffle mode (in which it cleans a small area) is also extremely useful and something I wish my 650 had. For what it's worth, the personality, design, and personal touch given the bObi (it comes with a birth certificate and its modes are named things like juice and the aforementioned waffle) also make it fun and give it more life, though that's likely a matter more of personal taste. The bObi is also more sensitive -- it won't push past sofa skirts or bedskirts, for instance, but by the same token will not ram/scratch furniture. The only real downside I could find with the machine is that it tends to get tangled in things like carpet tassels, if you have those--but then so does the Roomba, just to a lesser degree. The Roomba is a bit shorter, which will give it slightly more clearance, and also seems to be a bit better in recognizing stairs. But all in all, I'd say the bObi is an excellent machine which outperforms the Roomba in many ways, especially within this price range.