I had a similar experience where I was able to pick up most of it just by tinkering around with it, but there were a few places where I expected it to behave in

I had a similar experience where I was able to pick up most of it just by tinkering around with it, but there were a few places where I expected it to behave in a certain way, but ended up tripping over a few places where the type system is a little too weak, or the syntax for some of the advanced types are too unique to guess how it works without some studying. I made a blanket statement about the curve too, since I feel like the community as a whole is still adopting it. Library authors adopted it early, but the average front-end dev (judging from podcast topics and documentation I see) seems to be really getting serious about learning it in depth. YMMV.