It was fun to write (Look at me! I just spent two hours figuring out how to compress this old Java 7 function into a one-liner in Scala!), but reading someone else's Scala was almost as mind-numbing as reading another programmer's C++.
Go is... meh. Quick to learn, easy to write (and read), but you quickly hit a plateau as far as personal productivity goes. I can see the value when working on large teams, but on my personal projects (for which I have limited time) my own productivity is paramount (not to mention I want a language that's fun to use) :)
Thus I've found Clojure is my ideal language for the time being. It strikes a good balance between power and simplicity (and at this point I find it more readable even than Go ).