Lean back and relax and let suck? You can forget. But I'm from a virtue of necessity and spaces parallel to when the little sucker is working on. Thus, I am immediately on the spot when he is stuck once again: - Under the bed (Ikea Malm) he remains a regular hang in linkage. - My daughter liked tinkering - lying around snippets / papers / threads: not good. Sits fast. - We have only hard floors, but it there are a few about 2 cm high carpets. The robot recognizes this only when it is too late and it gets stuck. - On doorsteps (laminate transition into the other room) he often remains hanging. - In bathroom rugs, curtains, bed canopy it feeds into it. These have now partly worn down holes thereof. If you previously set up as far as possible.
That he does not replace a vacuum cleaner, have many mentioned before me and I can only confirm. He is basically a nice toy, we glued on googly eyes. And yes, it is on days when they would not otherwise have sucked, cleaner than without. But one must not look so much at the corners.
My conclusion: When used as a 2-year would suck if, just as stressful. Nevertheless, I use it from still and. Thus, he gets his 3 stars.