I just started reading this myself and finally caught up to the latest chapters. Its pretty good from what I've read. It has a story telling style similar to gantz, so needless to say I was attracted to it almost instantly. My favorite chapter so far was "orgy", I don't think I need to say why, lol. That whole arc was pretty fucked up come to think of it.
As to the recently translated chapters:
What do you think of Jin and Tanaka hooking up? Think it'll last?