I like that it's simple enough so we can use without any training or assistance from them! The interface could be more intuitive but they are working hard at improving upon things with each release/update which helps us as customers too since our business needs change often anyway - not just in software versions!! It has made managing invoices much easier than using other accounting programs such as Xero etc., plus its free compared what you'd spend elsewhere if your small operation was paying anything close even when hosted via something else rather then cloud hosting options offered by most providers these days..