I need to know because I am on level 57!

Just the achievement and the item hunter tiara. Oh...and bragging rights. That's about it. Be prepared to spend 50-100M on it.

Ok. TY!

Out of interest, can you start again after reaching Lv75? I got to about Lv40, was given a far too expensive item so I passed and had to start back at the beginning, but its going to net me a ton more sp over time.

Yes, you can start over at any time, even after you complete Level 75 :) I've finished the whole thing and am now on 6 again. xD I keep getting unreasonable quests and restarting.

I got to level 67 and it asked for an item that was worth more sp than I had. So I've started over. xD

ohh I hate that thing. I failed on level 75 because I was 1 mill short.