Just like the name says, it is very EASY INVOICE generation software. It is very easy to set up, and very easy to learn. As you fill in the screen layout similar to the invoice form, you are actually building up your databases with not only the sales information, but also with the master data information such as customer, product, payment terms, shipment methods, FOB points, etc that are used later repeatedly. When you finished filling up the screen, one click of mouse will print invoice, packing list, and records the sales information automatically.
But this program separates itself from others by it's advanced features. The advanced feature includes:

Showing photos of customers and products
Sending invoices in e-mail
Downloading the sales data in Excel or QuickBook format.
Of cause, this program has important invoicing features such as:

The capability to select either "product sales invoice" or "professional invoice" format
The capability to apply % or dollar discount at each line and / or at total invoice
Customer dependent automatic pricing
Spaces to add ample notes at each line and at the bottom (total) level
The capability to override invoice number, invoice date, product description, and prices
The capability to recall invoices by customer via sales history records or recall by a specific invoice number
The capability to search products in any word contained in the product description field
The capability to search customer by customer's name
The capability to print "PAID" stamp with payment date, check#, last 4 digits of credit card number, paid amount, and clerk's initials
The capability to install your own LOGO that are printed on every form and reports to provide "Customized Look"
Extensive "Help" screen is provided throughout the system in simple English.