My wife bought me a 2 roller mill for Xmas last year, and I gotta say I love it. It is the Hullwrecker and I have seen a huge jump in my efficiency by crushing my own grains. Now, with that said, I would have no idea what the difference is by having 3 rollers. But, I can say, that the mill I am using has increased my efficiency and has been fun to use. It is kinda cool to add that to the process.