There is only one boss. The customer. And he can fire everybody in the company, from the chairman on down, simply by spending his money somewhere else. (Sam Walton)
If it's so good then why aren't others doing it? Some use the term virtual - but our practice is built to work this way. We've had to narrow our services accordingly, but for those without a need for their accountant to hold their hand, this works well.
So there's no risk to you, and at minimum you might learn something about how well you keep your data.