InfusionSoft API offers more advanced querying for custom fields, but they act like it should be secret…

Sometimes it's obvious a company has a decent software product but there's one part of their development they don't put enough time and resources into.  For InfusionSoft, it's their documentation, support, and their API.  It's a pretty powerful tool for normal companies, like Wordpress is great for most websites, but your company isn't like most…