Customer reviews

3.7 out of 5 stars
3.7 out of 5
523 customer ratings
5 star 55% (55%) 55%
4 star 9% (9%) 9%
3 star 6% (6%) 6%
2 star 7% (7%) 7%
1 star 23% (23%) 23%
How does Amazon calculate star ratings?