They only cost about the same as a set of shimano lx but are about 10 times as strong. GO get 'em. Initial impressions are they perform well and the guarantee takes care of the durability. 5 stars for the no chainsuck and another 5 for being cheaper than RaceFace. Ridden lots of cranks before which all seem to give up the ghost, no questions asked warranty if you manage to break the crank, what more do you want.
People are crazy to buy anything else.
So you have to wait, but its worth it. Can't be to bad. They are VERY strong, if not the strongest cranks you can buy. They are covered by a life time warranty for true DH racing. Thay look the best, and are not over the top like some cranks They come in bare allumunium so the paint wont come off after a few rides and look crap.