Yep, Stormblood content is basically completely down. As far as I'm aware, it worked for about 2 hours after the servers came up on Friday morning, then went down and has not worked at all since. IF you can log into the game at all (and I stress if, for large potions of today I wasn't able to log in at all), you MIGHT be able to do old content, level other jobs, etc. But that's a big if. Instances all over the game are crashing, even in old content. I am doing level 15-30 rogue class quests, and twice I have gotten disconnected and not been able to log in again for about 3 hours. I guess you can FATE farm in old content, that's the only thing that's relatively safe to do, assuming you can log in.