Yes, we saw Dr. Lazarus. My ddwas young at the time (6 or 7) and it did not work for us. If your child is very bothered by his tics and truly wants to do something about it then it may work for you. The kids are given things to do at home to practice the technique. If you have to monitor and encourage your child it won't work. The internal motivation is what is needed to be successful. I was also turned off by how expensive the therapy is now IMO. When we started it was half that cost. I'm not sure why Dr. Lazarus has increased his prices so much. It is disheartening for those people that could benefit from the treatment yet can't because of the financial burden. There aren't many that specialize in this field and it is just unfortunate that it is so costly as studies are showing some success.
I wish you much luck should you try. I have been there wondering if I should try something or not. I know how hard it is and I'm sorry for the pain I know it causes.
All the best.