A friend has owned a transmission shop for 30 years. He advised me to NEVER flush your transmission, regardless of what the new gimmick suggests. Drop the pan and filter and change the fluid.
He has numerous stories concerning customers who have had a major transmission problem and their first statement is, "i had it flushed" recently.
Flushing causes issues. Particles are released and get into sensitive valving systems
So for the "peace of mind" folks ,do yourself a favor and research before you flush.
And yes, look at the fluid and change when the color changes OR smells burnt.
