I would choose Zoho Invoice to...

Send elegant PDF invoices.
Customizable invoice templates.
Brand invoices & estimates with my logo.
Receive online payments.
Send professional quotes or estimates.
Add unlimited customers.
Customize the look and feel of invoices & estimates.
Send invoices in multiple currencies.
Automate follow up on overdue invoices.
Track my invoices and payments.
Automate sending of recurring invoices.
Add unlimited products & services.
Configure tax and discounts on products/services.
Allow the system to assess late fees automatically.
Impress my customers by sending timely invoices.
Track all transaction's history.
Access the service in 11 languages.
Add unlimited recurring profiles.
Brand my invoice and customize the email template.
Personalize my outgoing mails by adding place-holders.
Organize my customer information.
Import contacts from Zoho CRM and create invoice.
Watch crystal clear reports.
Streamline my communication.
Streamline my work-flow.
Take informed decisions.
Create invoices in multiple languages.
Contact support and receive assistance instantly.