Quite Imposing alone is a PDF plug-in. If you use Preps like we did at a shop I used to work at, we used it as a hot folder where we would drop in dozens of business cards, postcards, or notepads for gang runs. In order to do this with the Quite suite, you need to get 'Quite Hot Imposing' to make hot folders. Another thing that Quite used to lack that we liked about Preps was the ability to make dutch cut layouts. Luckily, Quite Imposing added this capability in version 3.0. I found that Quite has some unique features that came in handy every so often like splitting pages in half when a customer provided a layout already in readers spreads. You can also add numbering, stamps, mask out an area on all sheets, etc.
One thing I cannot vouch for is if the files place into a template in the order that you drop them, simply because when I was at the job where I used Quite, it didn't come up. I'll explain what I mean...When we did gang run business cards 63 up, the pressman wanted me to place similarly colored business cards in the same column so he could adjust the colors better on the press. When dropping the files in Preps, I knew that they would start at the top of the first column, then go down, then to the next column and so on. If this is how you also use Preps, then you might want to check with the Quite salesman.