[vorg]

I've never worked with Grails, but used Groovy a lot from about beta-10 to v1.8, though have since moved on to other languages, even trying to bring Groovy-like ideas to those ecosystems, most latterly Go.

I'm positive about Groovy's widespread use for builds and scripts on the JVM, similar to the way Bash is used on Linux. It doesn't get used much for building actual systems, even though some of Groovy's project managers tried to repurpose it for that. I've long had concerns about Groovy's governance, and believe that's the reason for its problems, e.g. Pivotal, OCI.