What type of floor do you and others complaining in the thread have? I own one, and almost never use the "max" setting. I have hardwood floors and a hardwood floor-specific head for the vacuum, so I'm wondering if all the negative experiences are coming from folks with carpet.
I use max for carpet, weak mode for hardwood. Doesn't take a lot to pick things up off a hard surface, but running the carpet beater off air suction needs a lot more oomph.