This is a GREAT plugin!

Not only a GREAT, and very customizable plugin (even the free version accepts a logo and creates beautiful, full color invoices and packing slips), the service is spectacular. Personally, I generally don’t use even good products if they don’t have excellent support. The “rubber meets the road” when you have a problem. These people responded FAST and helped me even with the free version. I’m looking at upgrading a number of my clients to the paid version because their product and support are so good.