Great series! And definitely check out the "Shift" series afterward because it is like a prequel to the WOOL series.
Ridley Scott and Steve Zahn bought the movie rights to the WOOL series...can't wait to see it on the big screen!
WOOL was simply amazing. I haven't enjoyed a series/book that much in quite some time. I'm currently reading the Shift Omnibus right now and it's just as good (so far). As far as the movie rights, I'm pretty sure they'll butcher it with big-name Hollywood actors, but such is life. A lot of potential though.