How accurate is Googles simulation
I have a pmax set to maximise conversion value, that is doing very well. Google reccomends I set it to target roas, and increase the budget from 600 a day to 1,000. They estimate the extra budget will get a 2x roas. The camapign is at least getting 1.5x roas right now. I am very skeptical when ad platforms want you to increase budget because they have every incentive to make it look like a good idea. Should I trust this?