"I can't remember what exactly I didn't get working, but I just felt very lost and overwhelmed, and that was spending a couple of days reading around online, looking at the code and examples."

Exactly.

I don't want to feel "lost and overwhelmed" when trying to learn some new product, or having to Google every single thing. It is a wonder anything ever gets done. Seems these things are written by someone in their ivory tower without any forethought to documentation. "Someone else wants to learn it? Not my problem! I developed it, so there! No good documentation for you." That is just lame.