Best solution ever when you want to create your own funnel

I have looked into MANY solutions to create a course funnel with one-click upsell (from Kajabi through cart and course apps to different plugins), and this proved to be by far the best solution for building my own funnel on a WordPress site.
For me it was very important to be able to customize the checkout page, as well as the invoicing, the integrations and a lot of other things Studiocart does for a very small fee. There were a few minor issues in the beginning but support was very helpful, they sorted out everything (plus I even got a custom solution to a specific need I had).
It’s easy to use, full of features, you can customize practically anything, and if you use Thrive Suite, it handles generating users and course access automatically too.
Very happy with it, highly recommended.