has long proved loyal service to me. After almost 7 years of continuous use (at least 4 times a week) had my quad blade to be replaced because the plastic container slowly got cracks. The old man had only 450 watts of power compared is the new no better or faster, but it is the usual good quality. The engine of my old Quad Blade still works and fits on the container of the new, which I think is very good because I can now take advantage of the old engine on.