I think muller adverts are effective as all muller adverts have the same basic method try to keep it simple and attract the target audience .

B following this method muller have truly found the key to sucess as all their adverts capture their intended audience an meet their audience's simplicity  as was said by mogley from the jungle book they used the "bear nassessatises " and i think this method pays off however sometimes muller just intend o shock their audience and tis shock factor  is also effective