Having watched a lot of the goto talks, I'd say that they're like a good tech conference: ~5-10% of the talks could have a major impact on your work/career, 20-

Having watched a lot of the goto talks, I'd say that they're like a good tech conference: ~5-10% of the talks could have a major impact on your work/career, 20-30% of the talks are interesting and slightly useful, and the remaining talks are basically product pitches / sponsor slots, which can be useful but are often biased.