Use natural language. Write .NET code. is extension for describing your tests using natural language. Ideally suited to a variety of testing styles (e.g. BDD, TDD, ATDD, etc.), can be used for acceptance tests, integration tests, unit tests or any other ad-hoc testing scenarios.

Extends Seamless integration.

Use any existing tooling to execute scenarios. Mix and match standard tests and scenarios in the same assembly or even in the same class. Use unobtrusively alongside other frameworks (e.g. NUnit, MSpec, etc.) in the same solution.