this be the 5th vacuum I have ever own in my life . I have have it for 5 month now and absolutely can not stand it . it emit a high pitched shrill when in operation and be exremely loud . it give I a headache listen to it . it be annoy that it always switch into bare floor mode when upright . every single time I use it , I have to lean down and change it off bare floor to carpet . the release latch be difficult to engage & I can not do it just by a simple step on it . I have to lean down & pry it open with my hand . the power button be not conveniently located . it be on the main shaft , require the user to lean way down to turn it on rather than it be a simple flick from the handle . I also do not like the `` power paw '' attachment located on the very front top . it be constantly get knock off . I have not notice that be do any particular better cleaning than any other machine I have own . I definitely would not have purchase it if I have try it out in a store before-hand rather than get it on line .