This was very insightful and offered many new ways of looking at large data sets and dealing with excel. I enjoyed that because some options were more suited to me and my familiarity than others to perform the same function, and I was able to choose which I would like to implement. Also, there were many aha moments -- areas of excel that I was struggling and now know how to handle. This is a long class but it is worth it. Just slow down and take it in phases. Thankfully, it is broken up to do that well.