Account features
Accounts are standard Salesforce Accounts
Assign price books to account
Multiple contacts per account
Accounts can have credit limits
Accounts can require PO for purchase
Contact features
Contacts are standard Salesforce Contacts
Contacts on account have ability to see/not see account pricing
Contacts on account have ability to purchase/not purchase on account
Contacts do not require Salesforce licenses to purchase from a store
Contacts can be associated with Community SSO users