My son hated learning to read. He just wasn't interested at all! I bought this with the hopes of making it easier on us both as getting to level D is expected for Kindergarten. He went from level A to G before we ever finished the series. We have moved slower than recommended by choice but he is motivated. He loves that he can master the material and read the books independently! We read them through together once and then he re-reads it to his dad. He is so proud. He even read a bunch of them to his babysitter, by choice. He still doesn't love reading but it isn't a fight. From a practical standpoint, the pronunciation alphabet song was helpful. The workbook was too easy in many places (he is already in school) so we skipped around. The harder activities at the back were great! I particularly loved that I learned hints to help my son with pronunciation and reading in general (he now calls the second vowel "silent, but deadly"). I am a big advocate for this program! It works.