Here are some commonly asked questions regarding the TestFreaks integration:
Yes, as long as they gather that information in the review process that can be stored in Engage as a custom attribute.
At the moment, there are restrictions on segmenting on interactions. This is planned to be expanded. What you can filter on today is whether a customer has made a certain number of reviews over a certain period of time. For example, if a customer has made 10 ratings / reviews the last 6 months.
A workaround can be made to set labels in automations based on the response the customer has made, which allows you, for example, to segment on whether a customer has made a 5-star rating or not.
Yes, at least for product reviews.
TestFreaks set up the schema.
Yes, that is possible to do.