In QuickBooks Online which 2 situations should you use Projects instead of sub-customers?

1. You want a different address for a job than for other jobs of the same parent
2. You want to see one-click unbilled time and expenses for a particular job
3. You want to invoice the job without invoicing the parent
4. You want to see the costs related to time entered for employees or vendors
5. You want to be able to invoice the customer, create jobs for locations and sub-jobs for work done