The vacuum cleaner is the first of its kind, and it excels in every way imaginable: it picks up dust and debris effectively, it glides smoothly over carpet, its suction force grows when it encounters impediments, and so on. Wool is easy to wash, so that's a plus. In my opinion, it does not work noisily, as it only takes half an hour to clean the entire house. The cat does most of the cleaning and taking care of him, but I'm not worried since I know he'll get unstuck and succeed no matter what stands in his way.