It is fairly hard to sharpen. You won't need to very often, an occasional touch up with a steel, or crock sticks. When it really does need it though you will have to work.
A friend carries a Benchmade folder in A-2. He claimed it was well over a year before it needed sharpened, which by his estimation was four times as long as a previous good quality knife. Every other year he sends it back to Benchmade, he says he can do all right by himself but the factory edge is superior.