I like that we are able to use our own software for invoicing instead of having to pay extra for an application. It's not very easy to navigate at first but once you get used it does work well. We have been using this system for over 5 years now and haven't had any issues with it. The only thing I dislike about it is when there isn't enough time in a month to do everything that needs to be done. If your looking for something simple for billing then this may be what you're looking for. This helps us keep track of all of our customers bills so they don't forget anything or miss payments.