Here are the 5 different roles available in each account:
A customer that is not logged in including anybody who is using the connect page. Guest access can be completely disabled or you can hide prices to them in Menu -> Settings.
A logged in customer who can design items and place orders for review.
Member of the staff who can design items and post orders/quotes.
Member of your staff who can design items, post orders/quotes, and change the system settings.
The creator of the account who has all permissions.