Tech reviews

Tech review: Proscenic M9 is solid cleaner, but robot vacuums still have work to do

Proscenic M9

It should be said from the outset that robot vacuums are nowhere near perfect, no matter the price. The common questions — does it do corners? Will it bump into things? How does it know where to vacuum? — are extremely valid and have been present in every model I’ve reviewed (some better than others).

For context, the most frequent answer I respond with is they’re great for a once-over when you’re out of the house, or if you have an area that gathers dust or hair frequently, they can go over it multiple times.


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