I have have the Portapower for over two year and feel that I have now have adequate experience to reflect on its good and bad point . I have also have a Miele canister and can compare it to another albeit far more expensive vacuum . in short , I think you get what you pay for . here be the major problem of the Portapower . 1 . the portapower do not come deliver with the ability to dispose of the bag . really , you have to purchase a additional piece of plastic that convert the round mouth to a square mouth in order to then use disposable bag . the vacuum come with a single fabric bag that be not easy to empty or clean . it be best do outside and with a perfect knowledge of where the wind will blow the bag contents . 2 . the Portapower have virtually no filter for retainer fine dust . absolutely no ability for a hepa or similar filter , unlike the Miele . when you turn on the Portapower you should expect that the room will start have a stale smell , which be from the expulsion of fine dust out the back of the vacuum . the Miele do not have that problem . 3 . the portapower do not have a retractable power cord . the Miele have one that you can activate with you foot . this difference might seem trivial but become a hassle . it come with a band that be intend to tie the fold cord -lrb- about 30 foot -rrb- , but it be so flimsy that it amaze I that any thought be give to its adequacy . even a velcro strap would have be a better solution . 4 . the power of the Powerpack be not go to blow you sock off . instead , I think you will find that it be barely adequate . 5 . by no means be this vacuum design to commercial specification . aside from the tube , there be no metal part . the latch to open the canister to access the aforementioned dust bag be incredibly flimsy . the accessory fitting be noticeably cheap plastic that be not design with a goal of minimize clog . for the Miele the plastic seem much more substantial and the tube diameter be noticeably larger , clearly design to make sure that clog be minimize . moreover , the Miele canister have a compartment for the accessory , while the Portapower have no such feature . on the good side be that the Powerpack have not fail in two year of light use . if I be in a position of purchase a vacuum today , I would spring for the extra cash and purchase a bare bone Miele for $ 300 . I know that it be unfair to compare the portapower to a vacuum that be more than twice as expensive , but I do it only to let the prospective purchaser know that s\/he have not yet reach the price point of marginal diminish return .