Amazon calculates a product’s star ratings using a machine learned model instead of a raw data average. The machine learned model takes into account factors including: the age of a review, helpfulness votes by customers and whether the reviews are from verified purchases.
Used it a few times now and I can definitely see the difference. On the photo one can see the blackheads. It has a very powerful vacuum. If you are not careful you will have a bit of a redness but it goes away quickly. I’m very happy with this product. Thank you