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.
These clippers are amazingly good. I've used Wahl clippers in the past (always been a preferred brand when compared to others I've used), but these feel so good in my hand and with no cord to get in the way, they're so easy. I'm not a hairdresser - I use clippers at home for my family. Yes, they're a bit pricey, but they feel really great, they're not too heavy, and they're easy to use. I have small ladies hands and the size and weight works well for me. Oh - the one charge lasted me two haircuts without any problem.