we bought it to use as a complement to our wholesale wireless vacuum cleaner; it is so easy to use: no wires, no bag to change (often smelly) that now we hardly use more than him! as effective for small daily work for the general cleaning of the weekend; it is as powerful as a big vacuum wire and autonomy varies from 30 to 45 minutes after the power required (simple setting by cursor on the sleeve), which is enough to make our home with 5 rooms; plus it's easy to store thanks to its "park" position (it make sense alone); we have not yet found fault him one regret: not having bought it before !!