Advanced Shipping Rules

We're huge fans of advanced shipping rules. We have a pretty large catalog of over 20,000 SKUS and a rather complicated inventory management system, so finding apps that don't cause problems with our store or checkout can be a challenge. Not only that but finding a way to setup shipping for everything from pill boxes that weight an ounce or two up to protein powders or cases of drinks that weight 20-50 pounds can be a huge challenge. Advanced shipping rules works great for us!