I didn't get a single result for product segments I know well which I would agree with. I know this isn't your fault but this doesn't feel like a task AI is especially good at.

A feature that is entirely missing here is price constraints. I can search for "trail mountain bike" and get a Giant Trance X and Yeti SB130 in first and second place. Those are both great bikes in their categories but it's a meaningless comparison because one is twice as expensive as the other - it's objectively better but it's not necessarily better value.