To tell you the truth, ESE is so simple that if I explain it without details, then I'm giving it away. Much of the information he provides in audio and written format is scientific and logical reasoning. The book is great! However, at this point, I don't care much for 50 to 100 page ebooks and several hours of that sort of content to sift through before getting to the plan. But I understand this is the nature of internet marketing, and you can't charge appropriately for a 10 page ebook. Ebooks usually are a minimum of 50 pages. Otherwise custies feel ripped off.
You basically fast twice per week and there are no details given on what type of diet you should follow (eg, low carb, high carb, nutrient timing) and he's NOT so into PWO at all--and at this point, neither am I, considering I live a 5 minute jog from my gym (would be 3 minutes if not for a traffic light).
I made the OP at the 19 hour. I started to feel better by the 21st hour. I thought that I was going to pig out by the time dinner came, but I really had no desire to eat much more than I usually do. I was very surprised by that. All I had was a huge salad with some chick peas and blue cheese dressing, a few lean meatballs (no pasta) and that was it. I had no desire for my late night snack later on. I felt VERY good at night and really had no desire to go to sleep at my normal bed time (not sleeplessness, but lack of desire to sleep).
When I used to eat much more frequently (6 meals and PWO shakes) and bigger (up to 5,000 calories on some days) I could never understand why hunger was an almost constant feeling, even after eating a relatively large meal. I used to ask myself, "How the heck do these people survive on 2 or 3 meals? I'd be destroyed." Well, now I'm understanding why: you can train the body to become hungry on schedule. Right now I'm in the process of training my body back to 3 or 4 meals per day while still not over eating and maintaining or losing weight (~2,700 - 3,000 kcals per day).