Firstly I would not use any other vacuum in our business except Pacvac- we use them for end of build cleaning and man do we batter them and they power through it all. This is the only brand you want. Room for improvement absolutely 1. The cords are too thin and get twisted and damaged too easily- I always switch them with a heavy duty extension cord. 2. More dusting attachments with a range of angles, like the small dusting attachment would be amazing with slightly longer bristles, or bristles angles outwards so they didn’t get sucked inward and need replacing after a month. But the actual vacuums are amazing