It is very difficult for me to give you a definitive answer knowing so little about your current technological environment and the details of your virtual assistant business model. What technologies/databases are you using today and where is duplicate data entry required? All I know so far is that you are using QuickBooks. If you could explain why you think Infusion is best for your business, it would also be helpful. What specific features and benefits of the solution do you think are most advantageous to your business? Do you think Infusion will be an adequate replacement for QB?
I`m happy to help you out but with so much at stake, I would hesitate to offer a definitive answer without a lot more information. Perhaps we could speak by phone? Feel free to call me at 415-350-3472 if you would like to discuss this important decision in detail.