From my personal experience, I always answer this question by asking them this question:
what does accounting record do for your business?
The next thing I hear is: to measure my profit and loss, get report on my current financial conditions, provide record of my assets, liabilities and equities and lastly submit my financial report to various stakeholders like banks, tax agencies, management, creditors and so on.
Then my next response will be: this is what Quick Books does-all these functions you mentioned earlier, Quickbooks produce a more accurate, error free and timely report by automatically recording your daily business transactions in just one or two click.
Why spend several hours waiting for your accountant to produce your business report when you, the business owner, can monitors your current positions on a real-time.
We are in a society where business accounting and data processes is driven by IT-which the big Tech giants have called cloud computing.
If you want to save your business time and become more productive in processing your growing business transactions, QuickBooks accounting is the answer.