Two weeks passed after they diagnosed the problem as the actuator, the
dealership said they couldn't find the part anywhere. I called the Toyo helpline in California and they found it within a day.
But, it took another week for various parts of the actuator to be delivered.
When the dealership installed the part,
the pedal was still soft. They finally gave us a
car to use for free while they figgered this one out.
Another week later, they found a bubble at the actuator end of the brake assembly. My suspicion is that may have been the problem all along.
The dealership said the parts cost $1,400 and they weren't charging for labor. I also suspect that at that price they weren't worried about labor cost.
But the car is fixed, even though it wasn't worth the time, money and effort. We would have traded had we not been slammed with a confluence of unusual bills at the time.
I hope you have better luck and astute mechanics.