I first found Ruan's videos on Youtube. I was extremely impressed at how thoroughly he would teach each topic. He does not hold anything back, and really wants to give people the tools they need to build their business.
After watching the youtube vids, I inquired about his course "Underground Secrets". When I started to get into the information, I was blown away. He teaches you everything you need to know, to be a successful organic SEO / Lead Gen agency. He breaks everything down in short, easy to digest videos. He walks through everything, to ensure you know exactly what steps to take, and it is one of the best SEO courses I have ever come across.
The most impressive part though, was his willingness to help me out. I shot him a fairly long e-mail, with a couple of questions. He immediately reached out, giving me his number. I was very appreciative. From there, he answered my questions, and offered to send me a bunch of documents that would help me out.
Whether you're looking to learn SEO from scratch, or you're a seasoned professional, his course will have information that will help you. Super impressed, very appreciative.