The overall rating reflects the current state of the app. It accounts for all app reviews but prioritizes the most recent ones.
I tried the trial and it does work and seems to work well for very simple products. Items that have variations and important tags with information are not working well with the system. We needed to add more information to the listing that was not integrating and ran into some bugs. Support help is aggressive and they call often to help, but they must be overseas because they call late at night. I have received calls and messages from them at midnight CST. The support help is also difficult to understand, and they also have a hard time understanding what I am trying to communicate with them. We have put this integration on pause until further progress from both them and a more user friendly walmart platform.