For this to be useful they need up to date information, so it just Googles shit and reads Reddit comments. I just don't see how that is likely to be any better than Googling shit and reading Reddit comments yourself.
If they had some direct feed of quality product information it could be interesting. But who would trust that to be impartial?
Do you buy the first item that pops up on Amazon for a search that you've made? Because that's letting the robot do it for you.
If the answer is "no because that's an ad", well, how do you know that the output from ChatGPT isn't all just products that have bought their rank in the results?
Project Farm solves the trust problem with methodology + video documentation and the monetization problem with affiliate links for every product tested.
If they had some direct feed of quality product information it could be interesting. But who would trust that to be impartial?