In this case, "written in Scala" is already interesting new idea. By the fact it's written in Scala, I already know that it can be run on standard JVM applicati

In this case, "written in Scala" is already interesting new idea. By the fact it's written in Scala, I already know that it can be run on standard JVM application server stack, that it will need less resources than your standard Ruby implementation and be much more performant and cheaper to maintain if installed locally.