Despite my rage over getting screwed out of Hera last run, I did try it again when it first popped up last night. Last time I ran CDD and Green Odin and it was a headache matching hearts constantly, so this time I just ran a Zombie team.
I don't have an Orochi, so I used a Titan along with an Ancient Light, Lilith, 2 Light Demons (level 42-40), and Sorrow's Ama (which let me use this team with 6200ish HP).
The fist 2 rounds cost me a stone each, with too many synced up Knights, after that it was a slow but easy journey. Poison, then mindlessly match 3 until a skill pops up.
Ended up taking an hour and a half or so, but I spent most of that time watching some bad television shows. Anyway, I've got my Hera now, and I don't plan on ever running this thing again until I manage to score an Ama/Odin/Neptune. Only cost me a single stone after getting the one for completion, so that's pretty good.