Customer reviews

3.8 out of 5 stars
3.8 out of 5
660 customer ratings
5 star 57% (57%) 57%
4 star 7% (7%) 7%
3 star 9% (9%) 9%
2 star 9% (9%) 9%
1 star 17% (17%) 17%
How does Amazon calculate star ratings?