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.
Toilet cleaners is something that I buy regularly and every time I end up buying Hapric or Domex. This time while making a purchase I found out about Cleenz Toilet Bowl Cleaner and what attracted me first was Price it was offered at. I decided to purchase and found it to be a very good product an found it better than Harpic. It removes tough stains, yellow marks and hard water marks from toilet bowl. I highly recommend this product.