I stopped using PowerXpress because I had to add or change too much of it and it's VERY expensive (110.00/lesson). The memory verses didn't seem to line up well with the lessons in some cases. It was quite a stretch to make some of the activities reflect the lesson. Overall, I feel it is a poor quality, expensive canned curriculum and one would do better to offer rotation.org that 110.00/lesson (can you imagine the possibilities??!!)
Edited to remove long quoted material. Did not change anything else!