Why do I not bought earlier? This is simply fantastic! I had read the comments left by other buyers and I was not left me impressed by the 2 or 3 negative (anyway there are people who are never satisfied) so luckily I took my envy robot. My house is big and I must admit that sometimes certain places were forgotten. Once everything is done and it is impeccable! My carpets are net, even those that are lined with fringes. The noise is not disturbing, it is weaker than my conventional vacuum cleaner. It stops well on the edge of the stairs, which proved very useful to the bedroom floor where he wanders alone and goes everywhere. For the time it works a little over an hour and a half in a row and returns itself to its base to recharge. The cleaning of the device is very easy. This is a purchase that delights me :) I intend to buy to my stepdaughters.