I am a fairly experienced UK user and wasn';t sure what to expect, but was very impressed. I like the slick CL website and well produced HD videos.
John is certainly a very good teacher, who is clearly spoken and tells you what you need to know about the D600. I was able to sit with my camera in hand and go through all of the controls and picked up some very good tips, which I will use in Bhutan tomorrow!
So I like my new teacher and on that basis will be coming back to take John's Fundamentals of Digital Photography and also the Olympus EM1 courses, which represent good value for money.
What can I say John Greengo is the best photography instructor and the best prepared instructor I have ever witnessed. His visual aids are second to none along with his presentation style and years of experience you can't ask for any thing better. He covers the D600/D610 from top to bottom and doesn't miss a thing. If you have this camera and don't feel you are using it to the best your ability, then try this course. You will come away with a much better understanding of how to better use your D600. If you are new to digital photography or if you might need a little reinforcement of the basics then I highly recommend his 5 day course "Fundamentals of Digital Photography 2014." He covers everything in this course from what different camera brands offer, along with exposure to composition, and from focusing to lenses and lighting. He doesn't miss a thing and neither will you with John's clear and concise teaching style.
I am about half way through this D600 course. Like many people it turns out I learn significantly better visually (and hands-on). Thanks to John's well spoken and clear style absorbing his presentation is very effective. I have already applied even simple D600 features. Even if you are thinking about this model I strongly recommend this course- If you're like me, you already made the plunge. That's O.K.- this will maximize your experience. Do it.