Any good Niagara tutorials?

I have been trying to learn Niagara for the last few days and I just can’t wrap my head around it, even though I’m fairly good at BP. Maybe I’m just too stupid to understand it but any tutorial I came across either outdated or explains nothing.

Please don’t advice me to check CGHow, I have no idea what that guy talks about.

I’ve found tharlevfx does good and concisely delivered tutorials. I haven’t done his Niagara tuts, but if his other tutorials are anything to go by they should be pretty good.