Loudness Toolkit 2 is an essential plugin bundle that you’ll need to look at if you intend to work with multichannel audio.
Mixing for Post and Broadcast is a technical discipline; quite different from mixing for stereo, and generally with very defined protocols and standards to meet. The Loudness Toolkit 2 is a recently upgraded collection of 3 software plugins that make the potentially complex process a massive amount smoother, and faster.
They are extremely stable, accurate and reliable plugins. They definitely speed up the process of mixing audio for Broadcast, by ensuring that you can accurately set, and see the levels and ranges you have to fit within.