It works perfectly for my son. I used this method for over a year before i see the result of my son. My son is turning 4-year old soon, and he could read many books by himself at the age of 3.
Please make sure u read Doman's book 'How to teach your baby to read' before you start teaching using this method. Review the book again and again whenever u feel lost. Persistence is a key to success, never give up too easily.
Special thanks to 開心家庭網 網主. That is the first resources that provided me a good start on teaching my son.