Thats exactly one use for it.

In my case I have a triple rate set up on my Yak so that I have a low rate for takeoffs and landings. A middle of the road rate for smooth IMAC style aerobatics, and a wild rate with bevel to bevel throw for tumbles and hovering and the like. Each has its own expo setup as well. In this case they are set up on whats called a "Flight Mode" switch. All three rates are tied to a single switch and the rates and expo and even mixing can be set up for each flying condition.

On my helicopters I just throw about 25 percent expo and enough throw not to stall the blades and have at it. So it depends what you're flying, and what you want to accomplish.