Thanks everyone - just waiting for 6 reviews now.
When doing your overall star rating, please note that you need to score out of 10 - NOT out of 5. Because the screen looks too messy with 10 stars on the screen, we display the score out of 5 stars, but the score is actually out of 10. So, for example, if you give a product 9 / 10, it will display as 4.5 / 5.
Hope that makes sense!