Seems to nail most of the desires of mobile/indie scale development.

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.

Benefits show an increase in something good or a decrease in something bad.

Better speed. Less code. Easier distribution. Lower cost.

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.