Fairly easy to install, adjust trigger pull to a touch... feels much nicer than blade trigger, though does not look as good. more adjustable than a blade trigger...
the bad, a pain in the a$$ to get the trigger pull down to nothing. if you're not as picky as i am then you won't have this problem... though try getting your F%%*$(ng blade trigger down to what i have on the werm. the only thing the blade trigger has on this is that the pre play is externally adjustable.
i'd give it a 9.5 for the pain in the a$$ it is to adjust the pre-play but i have to give it a 10 because there is no 9.5. can't give it a 9 because it is better than that... wermstick=9.5 blade trigger=9