I am using a Rocket Theme. I have tried to use Virtue Mart and it isn't working very well. I am considering buying this solution but had a couple of questions.

Can a non registered user maker purchases without registering on my site? Virtuemart has an option to allow user to user their email and password in place of registering. Is this an option?

In comparison to VirtueMart, is this easier to configure? I had a hard time with VirtueMart and still can't get it to work right. I'd like to hear a few opinions.