Customer reviews

3.4 out of 5 stars
3.4 out of 5
180 customer ratings
5 star 40% (40%) 40%
4 star 16% (16%) 16%
3 star 13% (13%) 13%
2 star 8% (8%) 8%
1 star 23% (23%) 23%
How does Amazon calculate star ratings?