Corda is extremely Java-oriented. It will be really attractive for people who like Java and not for people who don't like Java. You can develop these application with Java or Kotlin also. Smart contracts makes the data highly filtered and validated. Private networks - gives the benefit of immutable chained data but only visible to those who need to see it.

I like corda specially on security rules

With corda we can build essence of blockchain security without compromising privacy. Detailed documentation and getting started was easy, and lots of flexibility on programming the transaction flow and state evolution of the DLT.