Delta has a very friendly customer service and are always willing to answer any questions you have. I love that they are constantly adding new features and enhancements to the program, so you never know what you will find next. I have been using Delta since it first came out and I have been very satisfied with the program. The program does exactly what we need, and is very user friendly. I wish I could have more features at my disposal, but the more basic features that the program offers are very helpful. Delta allows us to keep track of our accounts receivable with ease. We are able to see where we are short on invoices, and where we are having problems collecting payments.