A brief and a budget that buys usable video instead of a folder of unusable clips.
Paid creator video works when there is something to retain the people it sends. Before that, it buys a faster churn rate.
If users leave in week one, more of them leaving faster is not progress. Fix the product before you buy attention.
Thirty to forty-five seconds. The demo has to be the actual product on screen, not a talking head describing it.
Whether you can run it as an ad, on which platforms, and for how long. This is where founders get burned, and it costs nothing to settle upfront.
Three cheap videos from three creators tell you more than one expensive one. Then spend behind whichever performs.