irobot, dyson, shark, hoover are very famous brand among people, they have different advantages. Of course, the price is also expensive. Therefore, if we are not very rich or we just a single man and live in a small rent house, we need to work in the daytime. If our budget is limited, I recommend MOOSOO and APOSEN to all of you, they are more cheaper because they seldom advertise on google, so they give the more cheaper price to the customers
