As you’ve noticed, the forum is a place for users of the Community Edition to discuss with other peers. We, Sharetribe, don’t offer support for the Community Edition even though you can see that we reply and participate to many discussions here.
It’s unfortunate that no one has replied to Anthony’s question to share their own experience, but hopefully more people will notice this thread thanks to your new message!
Right now, we are not working on a shopping cart feature. I don’t think we will build this in the near future. If we build such feature, we’ll of course announce it but I don’t have any timeline to share.
If this is key for your marketplace (sounds like it!), and if no other user of the Community Edition is willing to give or sell their own implementation, it’s a good idea to build that customization yourself. If you prefer not to, then Sharetribe Go is probably not the best fit for your marketplace business.
Hopefully this helps, keep us posted about your progress!