The overall rating reflects the current state of the app. It accounts for all app reviews but prioritizes the most recent ones.
Does variant BOGO's which is more than I can say for 99% of apps out there. However it does not work and slows your product page down to a crawl. Also has basically 0 options for customizaion. It's simply not ready to be live.
Thank you for your feedback. It is to let you know that we have recently optimized the code of Bogo Discount App to improve its speed and performance. Please reinstall the app and let us know if you are still having the issue. Thanks.