The overall rating reflects the current state of the app. It accounts for all app reviews but prioritizes the most recent ones.
I tried this app mainly because other review for excellence support, however that is not happen even close to me. Support is incredibly poor. They replied my email almost one day one email no matter how quick i replied to them. I would give it a try for 1 month. This app is far more expensive for $35. Other free app has a lot better support.