The overall rating reflects the current state of the app. It accounts for all app reviews but prioritizes the most recent ones.
App does what I want it to but don't expect much help from their support team. One of the most unresponsive I've ever found on Shopify.
I chose Dynavi because it was free and offered a better solution than just embedding a video to the product description. This app is pretty straight forward. It does what it says. It places the video in one of the product image slots. Though the placement is lower than the other images. The support guys got back to me in the same day and were willing to work with me. I did get frustrated working with at first because the changes didn't seem to take effect. Also sometimes when you click on the video it just shows the video image, not the video. But that is like %15 of the time. But now its up and running. Here is an example of the end product, http://kidminmarketplace.com/collections/videos/products/i-will-praise-you-music-video