General Features
flexible Tax Models
Customers can enter their own Shipping Addresses
Shopper can view all their previous Orders (and Order Details)
Order Confirmation Mail is sent to you and shopper
Multiple Currencies 
Secure Sockets Layer (https) Encryption (128-bit)

Product Features
Easy to Use Web-Administration Interface
Can be used as a shop or just as a catalog
Product ratings & testimonials
Works with downloadable Products
Manages unlimited amount of Products

Administration
multiple images permitted per Product
Product options can be added
Shop Statistics
Order Management with Order History and Order Edit Functionality
Order Status Management  

Payment
live Credit Card Processing
built in Payment Gateways like authorize.net®, PayPal, 2Checkout, eWay, Worldpay, PayMate and NoChex 

Shipping
Easy to use Shipping Carriers and Rates Configuration
Live-Shipping Rates using Shipping Modules (e.g. UPS, USPS, FedEx)