- I was surprised to find that the purchase provided more benefits than I had anticipated receiving. Diligent. It's not without fault, but it can be overlooked. Homes have achieved a higher level of cleanliness, and extra time has been made available. If you can understand the reasoning behind his work and apply it to your own, then the acquisition will be profitable in every manner. The ratio of "price-quality of goods-result of work" for this one looks excellent to me, however I'm not sure what other, more expensive versions are capable of accomplishing.
- Not discovered, with the possible exception of persistent attempts to storm thresholds and furniture components that result in "hanging" and getting stuck. These obstacles are obviously impossible to overcome, but the vacuum cleaner does not account for them as such in its calculations.