Would like to see how this compares to d3. D3 is incredibly powerful but also very difficult to learn and teach. Whenever I write code in it, I feel like I'm the last person to ever understand that code.

If they can position themselves as a common-person d3, they would have themselves a huge win. The fact that they say typescript right in the title (yet, another technology you have to learn to get started), is not terribly inspiring.