I've been using Business::Shipping for a couple of years on 1 particular web server, but I recently ran into a problem with new installations of the module on 2 new web servers. My tech support team couldn't figure out what the problem was, and after multiple re-installs, they told me to get outside help. Out of desperation I contacted Daniel Browning, the module's author, and was shocked to get an immediate response! Furthermore, over the course of 3 days, Daniel reviewed my test script code, studied the failure messages we were getting, and suggested changes to my code. Eventually, we resolved the installation problem - and we could not have done so without his help. Excellent module. Excellent support.