BDD is great, in my opinion, especially for working on larger projects with longer goals.

For example we're using BDD on a multi-million-dollar multi-year project with dozens of stakeholders and programmers from multiple organizations.

When we bring a new person on board he can read the BDD and quickly understand what's happening.

We use Cucumber, Selenium, and also use TDD tools like RSpec and minitest/spec, and minitest/benchmark.

Chat rooms are sometimes a dangerous place to ask questions. Mobs form really quick.

There are plenty of companies doing TDD. I've been practicing it in my past few projects and have only good things to say. I probably write around 50% of tests first, the rest is written after implementation to expand coverage.