For Pro Tools users
Please check this video for an overview of how to install SoundFlow 5 with a focus on Pro Tools.
For Logic users
Please check this video for an overview of how to install SoundFlow 5.6 with a focus on Logic.
Note on Pro Tools & Logic Language
Everything you need to know about SoundFlow 5
See this thorough walkthrough video from Pro Tools Expert and SoundFlow's CEO, Christian Scheuer, on how to get started with SoundFlow: