We use it and our child haw few tantrums and has never had a meltdown. We also follow 1-2-3 Magic now that he is approaching 2 yrs old. But behaviors are divided in 3 categories: good (green light) behavior, annoying (yellow light) behavior, and unacceptable (red light) behavior. The video instructs you on how to deal with these behaviors with various methods but the biggest one that works for us is accepting that our toddler like a caveman. His brain is not equipped for adult logic. So you have to treat him like a caveman. Sounds simple but many parents use sentences that are too long or try to reason with toddlers when it’s not fair — they have caveman brains. We use the Fast Food Rule to communicate — listen, repeat and repeat again — like you’re in a fast food lane. You mirror and articulate their emotions or desire because the toddler cant’ speak because he is a caveman. Observe behavior: “You’re crying” “You’re mad” Articulate emotions or desire: “Mommy hold me” “I’m sick” “I want it” Repeat and repeat — and eventually your toddler will see that you understand him. Only use short sentences. Our child also love “Paying the Boob” which sounds perverse but it’s acting silly and in an exaggerated way when communicating or interacting with a toddler so they feel empowered. Really works for encouraging green light behaviors. For example, when we put toys away I drop the toys and say “Oh no!” I try to put it in the basket and I miss. — “Mommy missed!” Then he runs up and he does it and I say” Wow!” So I am big clumsy fool and only my big boy toddler can save the day. You would be amazed at how many green light behaviors you can “Play The Boob” — like eating — I pretend to miss his mouth or I drop the food. Then he picks it up or uses his spoon — “Yay!” or throwing garbage away — I pretend I can’t find the garbage can “Where is the garbage? Where did it go?” and he “finds it.” Seems simple but lots of parents do the opposite — like speaking to a toddler like an adult or doing too much for them instead of letting them be empowered to do things themselves.