What is the effect of Nanjing Huicheng Sun Duoyong's course "Super Selling Hands"? Did anyone who took the class share their experience?

At the beginning of this year, I went to Sun Duoyong's super sales course and learned it with my boss! After three days and two nights of study, the course content mainly focuses on eight parts: impression building, professional consultation, answering questions, resistance analysis, transaction strategy, customer management, symbol marking and growth planning. Objectively speaking, the course is still very good, paying great attention to landing! It's just that the rest time is relatively short, and there are more than 10 classes every night. Moreover, when we return to the hotel, the boss will take us to continue the discussion. Basically, we can't rest until the early hours of the morning, and classes begin at 8: 30 in the morning. Time is tight! But the harvest is quite good, I think it depends mainly on the individual's learning attitude!