Customer reviews

2.8 out of 5 stars
2.8 out of 5
9 customer ratings
5 star 21% (21%) 21%
4 star 20% (20%) 20%
3 star 18% (18%) 18%
2 star 0% (0%) 0%
1 star 41% (41%) 41%
How does Amazon calculate star ratings?