The problem of non-terrain wheels I know credited its own cord becomes the insurmountable obstacle, the accessory panel opening is with me but not a very big problem. Is perhaps one twice happened. And I'm not sure if I have it shut properly. Much more annoying, I find that they can only be opened a crack to take the papers out.
Dennoch- the suction power is really ok, he is very quiet and - most important, especially for me as allergenic dust containment is impeccable. Technically therefore, a good device, the housing there need for improvement!