To this day I've only ever ran O11N once and that was on release night. Within the week I made myself a full crafted set for both tank and dps (healer is working on tome). I even bought the O11N music, eScape, just so I wouldn't have to bother with running it anymore. It's why I keep up to date with crafting. I'd rather make my own gear than play with RNG.

I have absolutely no reason to run 9, 10, or 11 now.