Facebook has this exactly this tool, aka Conversion / Brand Lift [1]. It's a real experimentation system, not a "simulated" one like Google's Ghost Ad.
Yep. Lift tests are solid gold. A lot of people pan FB ads but the reality is they can be very incremental.
The flip side is that not every campaign, targeting strategy or ad will be incremental. You have to test and retest your way to it. A blanket assumption won’t work.
The flip side is that not every campaign, targeting strategy or ad will be incremental. You have to test and retest your way to it. A blanket assumption won’t work.