Amen to that.

I am making the switch from TDD to BDD (behaviour driven development) simply because the readability of the tests and output is vitally important in demonstrating software quality to non-technical stakeholders.

As someone with "Big Data" in their job title a large part of the battle is convincing people used to shrink wrapped software and big vendor SLAs that cutting edge stuff can be developed in a reliable manner. Using Behaviour Driven Development as a communication device as well as a quality metric is extremely important.