I love how easy it is to use this software for billing clients. It's very user friendly and intuitive. You don't need any training or help from someone experienced in using it - everything is self-explanatory. There are some things that could be improved such as having an option to print directly to PDF instead of saving a file to download later (which then has to be printed). The best thing about moonvio so far is being able to send out monthly statements without manually entering each client information every month.