It reminds me of Visual Basic or early versions of Dreamweaver to an extent (which is a huge compliment). That enabled a massive number of people to make apps who wouldn't otherwise have been able to, but after using it for a long time most users abandon the visual UI builder in favor of the code editor.

If you're a visually-driven person then this looks ace, but I think in the opposite way to the narrator. Rather than finding writing the code directly annoying and preferring an interactive way of editing components, I find visual interfaces to code really hard to work with. I suspect I think in abstractions too much for it to work for me.