Reading this inspired me to get out my Lindhaus PN and try it on my new plush carpeting. Paired with my Electrolux, this is one fantastic power nozzle. It really grooms the fibers while being very gentle. In comparison, the PN6 I normally use seems to aggressively dig while mostly sweeping, but with the Lindhaus, you can feel it beat the carpet inches away! The Lindhaus also has a large center air path with chevron brushes, so it is designed with efficiency in mind.
I'm now curious to see how their uprights perform. Does anyone own a Healthcare or Valzer?