The overall rating reflects the current state of the app. It accounts for all app reviews but prioritizes the most recent ones.
I am not sure how well this app would work yet, but at least their service is good. They tried to listen to users and welcome feedback.
I used this app to get Google analytics set up. I do not speak tech language at all and their customer support was awesome. Customer support would get 5 stars, but the app language isn't intuitive for me.