It is very easy to use and understand, it gives you an idea of what your audience consumes and helps you in your marketing strategies. You can send your own emails and track them as well. It is available at no cost and is simple to use. I am not sure if there are any other tools that give you the same amount of information for free but this one seems to be the most useful out of all. The best part about this software is that it is very easy to use and has great customer service. It is a fantastic tool to gain insight into your customers purchasing habits. This has helped me tremendously with my marketing strategy.