Not too bad, could really use a new cloak / waist though ! And ofcourse the T10 hat for an awesome dps increase.
I think opinions are shared about Nibelung, but you are way better off with the Mag'Hari staff from Saurfang. The loss of stats such as haste and crit for that proc is not worth it as far as I know. You should check out Shadowpriest.com to see the discussions about Nibelung.
http://eu.wowarmory.com/character-sh...=Anaxile%C3%A1
I joined a 25 man guild (well I was in one before but only cleared 1st wing) a few weeks ago so haven't killed that many bosses yet. Luckely I was able to parcipitate in the first kills on Blood'Queen/Dreamwalker/Putricide and I'm working my way up DKP and gear wise.
I know that my haste is pretty low but I am basicly using the best gearpieces I can get. I am saving up all my DKP for Dislodged Foreign Object for a huge increase in haste and the imba proc ofcourse. Furthermore I don't think my gear is that bad, hopefully I'll get the boots from Festergut aswell and after that i'll focus on getting Sanctified T10.