This is a powerful extension. I have not even fully explored all of the features of the package, but already I am impressed with the amount of customization you can apply to your emails. In particular the number of database variables that are preloaded as drag-n-drop options are quite good. For example, you can drag and drop multiple options for how you address your customers (username, first name, last name, etc.) You can put a single bit of code that adds links for all products in an order. The trigger system is quite good as well. We purchased the full package and I look forward to setting up a variety of emails to send to customers with special discounts and such. We had a few issues installing with our setup and the support from Interamind was quick and helpful. They do an excellent job - it's possibly one of the best all around extensions I've played with.