Customer reviews

2.6 out of 5 stars
2.6 out of 5
10 customer ratings
5 star 20% (20%) 20%
4 star 27% (27%) 27%
3 star 0% (0%) 0%
2 star 0% (0%) 0%
1 star 53% (53%) 53%
How does Amazon calculate star ratings?