I finally sign up a forum account because I think I needed to let people know some facts.
I'm glad I didn't run into any scammers this time. His method is very detailed. Every step is explained in text and video. Even for someone like me, who is not good at English, it was easy to understand. You can feel his dedication through it. He and his team member are very patient. They are really very nice.
Though for various reasons, I'm not progressing very well at the moment. I'm sure it's not the method's fault. Maybe I'm just not having much luck right now. He has some very warm words to say and makes me feel comforted. He's also helping me to solve my problems. I'm sure I'll get good results after I receive google ads accounts he help to create. It will give me the confidence to try again.
I'm sorry my English isn't very good, so I'm not sure I've made myself clear. Anyway, if you're interested in this method, talk to him, he's really nice.