Well LG is more than just skipping breakfast, in fact the part I think is more valuable is the carb/fat cycling on training and rest day. I know he goes into a lot of science on why fasting is great but I think at the end of the day its all about the calories and his system makes that work. With 4 rest days that are low cal/low carb and 3 training days that are higher cal/high carb ends up giving you a good deficit or surplus while maintaining or gaining muscle depending on what you are trying to accomplish.
There is also a guy in Japan named Andy Morgan
who is using Leangains on his clients and breaks down the program in some ways better than Martin. His clients definitely get results.