https://primaryandsecondary.com/tim-herron-class-aar/
Above is a link (because I am lazy and don't want to repost pictures, etc.)
The TL;DR version: I was very happy with the class. Tim is a phenomenal instructor, specifically his ability to diagnose issues, as well as having many valuable insights that have really helped me out. If you have the chance to train with Tim, I highly recommend it!
**Note: I wrote the article so no copyright issues**