I had no idea Bosch made vacuum cleaners before reading this thread, but since I mainly tend to concentrate on Kirby and Electrolux, it's not really an area of interest for me. Besides, I always think of Bosch more as a car parts company. I had a set of Bosch wiper blades on one of my cars until recently, when I replaced them because they'd dry-rotted, as wiper blades will do. Long, long ago, when I was into VW Beetles (the real ones with air-cooled engines in the back) the conventional wisdom was to use only Bosch spark plugs and fan belts.