To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyses reviews to verify trustworthiness.
It takes some getting used to. For example pieces of pineapple that blend easily in the big one need to be cut into smaller pieces or they get stuck above the blades and shaking it doesn't help. You also need to be careful of time as it warms up easily. Once you get accustomed to how it works it is fine. It has a pleasant feel and has a feel of good quality.