I was part of a book club of tech books and there was a ton of grumbling when we went through the Scala book. The consensus was this language was designed by nerds instead of language designers. Which either sounds like not a big deal or an insult worth dueling over depending on how much you pay attention to language designers and DX.

Full of Least Surprise violations, and just far too goddamned big. Did 3 try to pare that back into something reasonable?