The most helpful thing is that it allows me to track my shipments in real time from anywhere I am using an internet connection! Also very easy for customers to use as well since they can see their order status without having to call or email customer service at least once per week like we used too before this product was released (which has saved us so much money).
Nothing really but honestly there isn't anything super annoying either. This software does exactly what its suppose to do which makes our lives easier than ever now days with online shopping becoming more popular every day.