This math program has an excellent method of presenting and teaching the information from the CD's. My kids liked it for awhile.
However, I have found for grades 4 - 7 (at least) that it falls a year behind of Saxon and other reliable homeschool math curriculum, and is not very challenging. My kids became bored about half-way through the book. If your child must take a standardized test under your state's homeschool law, he/she may have trouble with the math portion.
My daughter used to hide when it was time for math! Now she *asks* to do it. She loves seeing her progress, as do I. This curriculum is great! If you want to see a demo, the company has a website with a great demo feature for each grade level. I just can't enough good about it! Be sure to have your child take the placement test before selecting a grade level. BTW, I am a homeschooling mom of three and have been schooling since 1998. We have also done Algebra 2 by Teaching Textbooks and my eldest says that now she REALLY understands math. You can't get a better recommendation than that.