This device is a kind of automatic sweeper: he does not proceed by aspiration, too energy system. Rendering is a satisfactory quality scan with only pressing a button. The camera takes policy decisions which are configured according to the environment: it goes easily under beds and under furniture feet too low and not sufficiently separated .. Some of us, physically disabled, spotted since the beginning Roomba brand: in a situation of real need is the brand that receives the most positive reviews, which is verifiable on all media focusing on disability and practical ways to address them beyond mere comfort. The price is high but justified, the noise is bearable but switch it on before leaving home quickly becomes a habit and we are always amazed by the amount of waste collected on a floor that looked clean. Some of us have even chosen their furniture according to the size of this robot. Precautions taken automatically face the various obstacles or soil type is correct and favor the safeguarding of this expensive machine that can be found stuck here or there (beware closets grooves) but still in good condition. Tired, paraplegic or overbooked: it Roomba properly meets the needs of different audiences, reasonable and serious choice. Validated by a purchase ... invalid ;-)