Customers praise the product's excellent flavor, with many stating it tastes as good as or better than name-brand root beer and is a favorite for its refreshing taste and lack of aftertaste. The value is also highlighted, with customers appreciating the cost savings and environmental benefits of reducing plastic waste. However, some users find the product's availability inconsistent, noting it can be hard to find in stores. There are also mixed opinions on the product's features, with some finding it easy to customize and control carbonation, while others experience issues with inconsistent carbonation or difficulty measuring the syrup.