Pros: Exactly what we need. This little eat 2 teaspoon dust(only) quietly at whisper clean mode every 2 weeks at New York City. easy clean, and Yes, It couldn't decrease our spring allergy symptom at all but absolutely can tell the difference of dust decrease over the table\TV\computer or in air.

Cons: PRICE! $80-$0.02 is far far away from its manufacture+transfer+selling cost. $80 is the manufacturing cost of a HP Touchpad, not this small tube with some plastic shell, a cloth base filter and a tiny motor. We got two of these in half price at BF, but even with that half price, we still think it is over price.

Overall Review: give it 5 eggs, cause we wish it could be continue output, we might return to buy more when our old one died, but only until we found other replacements if they don't drop their price. BTW, it need a handle. we have to hold it with two hands like holding a baby when moving it. Mostly my son hold it with his one foot.

Pros: Not yet.

Cons: Picking up voice poorly. Cheap produce quality, paper making feeling.

Overall Review: If I had ever touched this thing before I made the order, I would like to pay it for $4.99.