I'll bite - how did they save you a bunch of time in the first week? And how much time are we talking?
With Ramp, we can instantly create multiple cards per staff member, so they have one card per project we're working on. Our accounting group then immediately knows how to categorize that expense (because that card is ONLY used for that project), and Ramp reminds our staff to forward along the receipt (which it automatically links to the transaction). Our accounting group doesn't have to lift a finger.
It makes the whole process completely mindless, whereas before it was filled with lots of busy work to keep our accounting clean and organized.
The fact that it's free is icing on the cake. Big fan.