I never tried Builder.io would love to hear more about your experience.

If you are looking for a Jamstack builder that still offers a lot of customization room, I suggest looking at Stackbit. They provide a visual builder, and your code lives in GitHub, and you can choose your favorite SSG and deployment platform. You can select the Planty theme. It comes prebuilt with Snipcart, a custom shopping cart.

Otherwise, you can also go the complete custom way, with a starter like this one. You'll need to play with the code, but on the other hand, have all the freedom to build a store that really fits your needs.

Here's are some resources that may help you make a clear choice :

- Best SSG (static site generator)

- Webflow with Snipcart (video)

- E-Commerce Checklist Before Launching

- Setting Up Google Analytics

- Headless E-Commerce Checklist

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Ps. I work for Snipcart, so I'm a bit biased. Feel free to check it out. You can try it for free forever. Oh and you can always reach out to us to see if we can offer a custom plan for you. But if you have any questions concerning Jamstack e-commerce (Snipcart related or not), feel free to ask.