I think by far the biggest effect or rather a benefit is people no longer worry about their channel selection. Turn on the radio gear and FLY, without ever having to worry about some newb turning on their radio and you watching your hundreds or thousands of dollars plunge to the ground.
I guess the effect is now that people bring a lot more planes to the field to fly. Electrics, big, small, floats.... and just get up and put it in the air

Oh and the frequency boards/charts are catching dust