1.very flexible almost every account can be modified to suit personal needs.
2.real double entry system and well designed. Easy adjust refund, credit card and even payroll.
3. A little bit accounting knowledge helps a lot. However, every one can handle basic transaction.
4. Strong report system, tax calculation, trace GST HST ( in Canada).
5. Small in size, efficient, sync with desktop application.
Yucan100 about EasyBooks Accounting, Invoices, v4.9.1