It's incredibly useful for household budgeting purposes. Knowing that, at most, I can expect to pay $xxx per month for a service makes estimating expenses easie

It's incredibly useful for household budgeting purposes. Knowing that, at most, I can expect to pay $xxx per month for a service makes estimating expenses easier. The service apparently alerts you when you get close the "limit". Which means that if you're disciplined you can cut yourself off or just realize that you need to increase your monthly budget.