I used Cubecart because its a solid program which very few loopholes. If you think installing it is easy then think again because one mistake and the whole thing has to be reinstalled. However, once its installed, updates and design changes are a breeze.
It didn't cost me a dime but I intend on getting a license soon for Cubecart so I can install a new template. My new company will run directly off Cubecart only
It works well so why pay 400 dollars more. My Underground Sites run Store Creator 5.0 however