Welcome Snakes!? I never got any of those!
Haha j/k
I just completed my diamond challenge! Status through Feb. 2016 woohoo!
Anyways...for anyone considering the challenge, your benefits as a diamond are pretty clearly stated on the Hyatt GP website...(and in the wiki at the top of this forum..)
You're a diamond (including DSU) while you are on the challenge and the only difference outside of that is the 1k pts for the first 6 nights.