After 4 similar devices from the competing brand Ariete, all HS after one or two years to design flaws or for the ridiculous quality rechargeable battery, I am very happy with this unit. Externally the design of the hull is the same on Ariete, but the quality is much better: the top is metal rather than plastic: on my last Ariete it broke after a few months. The engine is much more powerful is the cheese nibbles at double speed, always relative to the Ariete. After nearly a year this Kenwood impeccably on. In short, it is better to spend a little more for this Kenwood, rather than save and then throw after a year.