Room for improvement

Overall, its good.
Altough, some really necessary functions is missing.

A Huge one is you cant segment/target to Woocommerce Customer users, for example:

send to user role “Woocommerce Customer”
Like “IF ‘woocommerce_customer’ and Is Subscribed / and Purchased product_name or product_brand

You can’t target people who already purchased specific products before you set up a list that a product, that’s a big deal.

We got tens of thousands of customers we cant target because of this.

Or to what characters the name of a product contains in their order, you just target existing wordpress users, not woocommerce customers, that is the difference. If someone has purchased with guest account or with a list previously setup with a product(thousands of products in our case) wich is the norm, you can not target them with your plugin currently. This is a big thing you should update and that would also be fairly easy to implement to your next update

Or a way to sync up wocommerce order data with lists or segmentation. like if order email is subsribed and purchased product with letters containing “brandname”

It would be a 5/5 with this, nothing else I can see that is missing