Before you decide to buy an add-on software package to perform a function needed by your business, which is not performed by QuickBooks, I recommend you have me evaluate the add-on software for you.
Usually developers of add-on software allow a free trial test of the software. You should take advantage of this opportunity to ensure the software will perform the function in a way that will meet your needs.
The evaluation of the software should be rigorous and be based on several factors such as does the software perform the needed function (or functions), is the needed accounting correct, and does the software create unintended problems that might interfere with your use of QuickBooks and your operations. Because of my skills as an accountant, in the use of QuickBooks, and in business procedures, I should be able to perform the needed evaluation for you at a reasonable cost.
Before an evaluation, you should consider the alternative vendors offering similar software products. To help you find such vendors, I have developed this Yahoo Pipes Search Product that can be used by clicking here.