I'd use this for Primals. I watch videos beforehand, but I get terrible anxiety before doing a dungeon/trial etc the first time. I worry I'll screw up and annoy people. The first time I tried Garuda Ex I messed up and died, one of the healers said I 'needed to go and watch a goddamn video before wasting people's time'. I had watched the video, several times, but I learn far better doing than by watching.