The advantages?
It is powerful, ergonomic (personal point of view), good accessories, stores easily.
A plurality of suction levels.
Emptying the easy trap dust.
Easy assembly.
Easy battery recharging. Directly from the shooter.
Convenient, clean and faster than my old vacuum cleaner.
The disadvantages?
Autonomy max power: less than 10 minutes. it will depend on the area to clean.
The bar between the brush and the shooter, not long enough. Obliged to stoop to suck. -they Have not thought of as a flexible system for some vacuum cleaners?
The quality of the materials selected.
Despite some drawbacks that I could find, it is still effective.