It's good to see Scala getting some love after all those "i hate scala" rants (many of which seemed to be written by people who haven't spent much time with the language). We're using it at work for essentially all new development. Although I have complaints, I can't think of another language or environment that I've used that's been so satisfying and free from overall irritation.

In practice, we don't get code that's unreadable, we don't wait ages for compilation, and we gain all the functional and typesafe goodness.