The overall rating reflects the current state of the app. It accounts for all app reviews but prioritizes the most recent ones.
A very nice basic integration app. You need to do a lot of manual work to set up profiles to take infromation from Shopify through to OnBuy but once that it's done, uploading is easy.
This app is a little complicated on initial installation. However the customer service team are extremely helpful and on hand to assist with any issues that arise. Once I had submitted a few products to onbuy it became a lot easier to use thanks to the help of the customer service team.