Something to consider for Cordless is

1. Good performance and long battery life will be heavier

2. Light weight will be easy to maneuver especially women, but sacrifice on power and battery life.

3. Filtration performance so far Dyson is among the best, many China brand suffer leakage in smoke test which means you are more likely scattering fine dust particles that you have picked up although those are more likely very small particles

4. Despite Dyson being great in ergonomic, maneuvering, filtering but most of its parts cannot be taken apart for washing unlike the China one usually can take off most of the stuff in the canister for washing, that's where your Dyson likely to have foul smell.

Panasonic also have this Clean Station model, unfortunately it did not state the AW performance too, only detail of power consumption 230W, tried using it at Harvey Norman it is surprisingly light and more easy to maneuver compared to Dyson V12, it will "move forward" on its own when u place on floor which makes the "push" motion much lighter.

Pansonic Stick Vacuum with Clean Station mc-kc1w247

If anyone interested I do have a unit I won from campaign for sale for just RM1k only with local warranty, reason being I already have V12 2 years back and don't need another stick vacuum