Your opinion on this

It’s been more than 6 months that i have created a new product listing. There are a lot of things that have changed but the one I am sceptical about is the Amazon-generated campaigns. I understand that the main factors are the product, listing and price. Is it remotely any close to doing the research and doing it the old-school way? Have any of you tried it? What are your thoughts? Your results? What do you recommend? Would love to hear your thoughts on it