Younoob Tutorials.

[Orophin]

I'd prefer not to watch a video if possible, but I don't want to be the guy holding back my raid group on account of that. I'll usually go in blind for a few attempts and then research less obvious elements of a fight. I've never been in a position where I'm attempting content at the same pace of the pioneers that are running it, so information has always been at my disposal as I'm attempting it.

For what it's worth I was able to clear every dungeon up through the end of the original main story with little to no issue without having to look up anything. Aurum Vale was probably the most challenging dungeon I did followed by Cutter's Cry, neither of which was required for the main storyline. A little trial and error doesn't hurt, but some people just aren't very patient.

[ShinkuTachi]

A little trial and error doesn't hurt

Agreed.

The only fights I've ever watched videos for are T5 and Moogle Mog. The only fights I didn't win during my first run are T5, T6, and Levi EX. Flying by the seat of your pants and learning on the fly isn't exactly impossible.