Sigma

4.83 stars out of a maximum of 5

5 stars out of a maximum of 5

4.42 stars out of a maximum of 5

4.45 stars out of a maximum of 5

5 stars out of a maximum of 5

4.33 stars out of a maximum of 5

4.72 stars out of a maximum of 5

4.75 stars out of a maximum of 5

4.75 stars out of a maximum of 5

5 stars out of a maximum of 5

4 stars out of a maximum of 5

4.54 stars out of a maximum of 5

4.56 stars out of a maximum of 5

5 stars out of a maximum of 5

5 stars out of a maximum of 5

4.83 stars out of a maximum of 5

4.71 stars out of a maximum of 5

4.92 stars out of a maximum of 5

5 stars out of a maximum of 5

4.75 stars out of a maximum of 5

4 stars out of a maximum of 5

5 stars out of a maximum of 5

5 stars out of a maximum of 5

5 stars out of a maximum of 5

4.92 stars out of a maximum of 5

5 stars out of a maximum of 5

5 stars out of a maximum of 5

5 stars out of a maximum of 5