Why use the Import wizard vs Subscriber rules?

Below is a table of key differences between the import wizard and subscriber rules

Import wizard

• Works with any Salesforce object.
• You can import any email field.
• Inbuilt field mappings.
• Runs as a specific user.
• Can run every hour of every day.

Subscriber rules

• Only works with contacts and leads.
• Limited to the standard email field.
• Can be combined with field mappings.
• Runs as user who triggered the rule.
• Triggers instantly.