Has anyone heard of ETL?

Honestly, I have not heard of it and googling didn't really help. It seems to claim to do alot for your child and looks pretty expensive. Personally, I would not recommend spending so much money on anything that is untested, especially for young children. I'd rather put it towards his future education or using it for honing his skills and hobbies e.g. sports, music classes. They probably cost the same but have more genuine, reliable results.