I'm working on integrating Braintree payments into a client of mine. Braintree is a perfect example of this and is a wolf in sheep's clothing, meaning, their docs look great at first glance until you need to get all the way through them.

For example, you start reading about how to do A. Half way through, you find out you need to do B. So you look at the link to B which then refers to C but C is A and you realize you're in a loop.

So then you try their search function, or Google, but then you find yourself linked to either outdated docs that look like the same thing or articles about the subject which give no detail.

It's spaghetti documentation mixed with out of date spaghetti mixed with meatballs. At this moment, I have 13 tabs open to various parts of the docs trying to piece things together to understand how to make it work and, sometimes, I find the out of date docs more understandable!