The most important thing that I like about powerflow is its accuracy which makes it easy for me as an engineer to predict the behavior of my product before actually building or manufacturing it. It also provides great visualizations so we can see our work well at any time from anywhere. Sometimes when you run simulations there are errors but they do not happen all the times (maybe 5% maybe less). If this happens then just restart your computer and try again till you get successfull result. My team uses power flow mostly during RF analysis where we find out how much loss will be added if certain antenna elements are removed due to space constraints etc.