No, Amway is not a pyramid scheme. Pyramid schemes are illegal in New Zealand and Australia: Australian Competition and Consumer Act 2010 (Cth) div 4, s 43.
Amway has been successfully and legally operating in Australia since 1971.
Amway Business Owners only make money from the sale of products - never from recruiting. Every product sold generates a bonus or rebate (similar to a sales commission). An Amway Business Owner also earns money from the retail margin on customer sales.
Amway has paid more than US$ 61 billion in bonuses and incentives to Amway Business Owners globally since 1959.