At first PackRat seemed to be a strange app, because it's an *app* made for working with Backpack, a web service. But once I tinkered with it, got used to how much faster it is than waiting for the web and how it brings a few features to the table that even Backpack itself doesn't have, and I saw the light. Toss in the ability to keep all my vital Backpack stuff offline and accessible at all times, and I was in love.
No matter how you use Backpack, even if you have just a couple pages of information, PackRat is a killer tool for working even faster with your account. If you're like me and you have nearly 18 pages, PackRat could very well become a mandatory tool for working with all that stuff. I highly recommend it.