This is an excellent APP!! I prefer using non-apple mouse yet somehow I'm not experiencing smooth scroll when not using the apple product such as magic mouse. With this APP, I can choose the 3rd party mouse that I like and have the same smooth scroll experience just like magicmouse/trackpad, from my personal opinion. Oh, it's even better since we can customize the setting! Actually, I also use apple trackpad frequently, I found this APP exactly what I need because it can set mouse at standard wheel direction while at the same time keep my trackpad at inverse direction... I cannot live with my Mac if there is no SmoothScroll app, honestly.