Man, so many features and the syntax is so heavily annotated and the subjective feeling that everything you interact with is some vaguely defined overcomplicated computer science concept ("what you get back from this function is not a vector but an immutable future-closure-trait-promise-with-sprinkles, you must be familiar with those already").

Not a critcism towards the language, I'm sure that it would make much more sense if I put in the time to study it systematically, but the beginner learning experience hasn't been great. It doesn't seem like a language that you can just dip your toes in, you need to go deep to see the benefits.