We're on our second class A, over a 5 year period.
she was scared to death in #1, and for good reason. It took some time for me to properly learn to drive it, and there were some mishaps.
#2, well I could thread a needle with this thing, and back it thru an s curve and give change on a dime.
And she still gets nervous, especially if I am passing a truck on her side, or in construction.
I've learned to ignore it.
She has learned that if she says anything, all I will give her is the opportunity to take over the driving.