The overall rating reflects the current state of the app. It accounts for all app reviews but prioritizes the most recent ones.
I guess it is a great app, when it works out of the box. But as soon as you need support,well. They fast, but careless. Communication is about 1 sentence all the time, which would be great IF things works. In my case, whom has a complex product page, they left it broken, non working, etc. saying it is all good. On the other hand, I must state: they were able to restore my product page to its original states, so at least that's went well. SAying sorry? They did not bothered.