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.
This is your standard Brita filter. It is nothing special, but is large in size if that's what you are looking for. You cannot really pour water until the filtering area is mostly empty, otherwise that water seeps out from this area. The filter needs to be replaced more frequently than I would like, which is why I subtracted a star.
The lid is poorly made. They should get rid of the spout cover instead of having it fall off everything I take the lid off. The electronic counter is not a smart idea either since the battery doesn't last forever and it might miscount the times you fill the reservoir.