Not features. Benefits.
Benefits show an increase in something good or a decrease in something bad.
Better speed. Less code. Easier distribution. Lower cost.
A lot of the benefits are hard to express in numbers, and I am not a marketing person.
Does this particular kind of type system help you in your software engineering? Very hard to quantify, and depends on circumstances and even personal preference.
I don't think I have any hard-number benefits that are meaningful.
You want it shorter? Something like "Get Python-like ease of use together with static typing and speed and built-in game programming functionality" ? That really doesn't do it justice. In the end, like most languages, it is a particular cocktail of trade-offs, and to see whether this suits you, you need see the full list of features.
Maybe you want a list of features with an example for each? It's hard to make it short though, especially the type system.