Does anyone have any success stories with the use of 1 2 3 Magic, for disciplining?

We just got the cds, because our son is apparently full force in the “terrible twos” and he’s not even two yet.
We want to properly discipline him, but no spanking or yelling (obviously, since he’s only 23 months old)
I’m really hoping this program gives me the keys to control my temper when he does bad things, and know how to react better. I think it revolves round time outs? I’m not sure since I haven’t read too much about it, but my mother’s friends have told her i’s worked for them.
Any experience with the program? How did you like it? Did it help or not at all?