I attended the Applied CCM Advanced OpenFOAM training course after running a few test cases in OpenFOAM 7. I came out with the ability to see the intimidating source codes as clearly manageable blocks with a common structure that are perfect for user modification. Applied CCM have designed a comprehensive course with hands-on examples and individual, tailored assistance to ensure all attendees leave with a good understanding of the content. 5 out of 5 CFD nerds would recommend.