The overall satisfaction, the home 130 building area, the square first sweeping area of 43 square meters, the latest sweeping area of 53 square meters gradually increased, the suction is very clean, you can inhale half a box every day, before they did not sweep the place such as the bed under the sofa are cleaned up very clean, noise according to the power size is not the same, basically start work at 9 am before noon to complete.