Agreed. Groovy is in my opinion absolutely the nicest and friendliest language to read or write. Scala has some really cool features that I would love to see in other languages, but it also has a tendency to become somewhat unreadable and is a lot harder to get into when you're new to it.
Really? I've been using it but I feel pretty lonely. I ended up creating my own Groovy based version of R / pandas data frames because there is simply nothing out there. I'm curious in what ways you're seeing it used.