
Before I express my own opinion, I will lay my cards on the table, I run workshops and have done so for over twenty years. I have led workshops for the Nikon School and a few years ago now, ran the official LEE Filters workshops. I currently run my own one-to-one and small group workshops, from a single day to ten days in length, both in the UK, Europe and North America.
So, I am of course, biased. Obviously, I think my workshops are worth it, but on listening to some of my clients (they are not just my clients, they attend workshops led my many other photographers and companies as well), I do hear of some horror stories.