I think the boss box has a low chance of getting the boss unique. I opened 10 and got one unique (lvl 110 helm).
So, after the first one, we can only do the boss quests once a day!? :-/
Do you know where we get Willie's Stabilizers? I don't see it in MS.
(Right now, floor 68 is bugged, boo)
(I swore on jTO, they had rewards for the chaos tower and it was 10x nikas, alex, etc. Maybe that was for something else? Our rewards are... bad. An extra box? :-X)