I tried to complete the level 54 quest (Blood on the Water) for several months, 15+ times, and never could, until I had gear with a crazy ilevel. Now, I can't finish the level 60 quest (The Face of True Evil), and I get killed by Musosai in literally 30 seconds. I think Square Enix needs to do something about this, as being a SAM in these conditions is very unfeasible.