Amazon calculates a product’s star ratings based on a machine learned model instead of a raw data average. The model takes into account factors including the age of a rating, whether the ratings are from verified purchasers, and factors that establish reviewer trustworthiness.
I'm a huge fan of Vikingur Olafsson. I've bought everything of his and love especially his album of Bach transcriptions, especially his own: Organ Sonata #4, BWV 528 - 2. Andante and Widerstehe Doch Der Sünde, BWV 54. If he released an album of Chopsticks I'd probably buy that as well. And probably better Chopsticks than this hash he and his colleagues have made of Bach (Reworks). Much of it is listenable, but there are a few tracks full of invasive electronic garbage: unidentified noise (footsteps? the mechanism of the piano?), and obnoxious droning fuzz bass (or defective phone jack?), and a recurring buzz that fades in and out, emulating a bad case of tinnitus.