Well, I was hoping that some of our users would stumble across this post, but in the interest of clarity I think I will chime-in.
eeSiteKit’s nested URI structure is not suited for use with EE’s Category Heading Tag, so we created a workaround for it.
Meet our Category Heading tag: {embed:cat_name}
Our users haven’t found that to be much of a stumbling block.
The kit is used by developers from all over the word for all sorts of websites. You can see a few examples listed at our site.
We don’t keep tabs on the folks using the kit, and since one kit license can be used for as many sites as a person wants, we have no way of knowing how many websites are running on the kit, but from time-to-time we stumble across one, or get the permission of a developer to list their site and we add it to our list.
If you have questions about the kit, please feel free to email or PM me, thanks.