For absolute reliability in semi-auto pistols, the FCD makes sense. The arguments against using it make no sense to me, as the FCD, when used properly, moves one in the direction of perfection which is a good thing. Used improperly it is like most anything else, not so good. These reviews from actual owner/users from Midway USA show why it a essentially 5/5 star perfect rating product and few products are so well liked by user/owners:
http://www.midwayusa.com/product/716...cp-45-auto-rim
http://www.midwayusa.com/product/289...nd-w-10mm-auto
http://www.midwayusa.com/product/557...-die-9mm-luger
http://www.midwayusa.com/product/557...-die-9mm-luger
http://www.midwayusa.com/product/217...olt-454-casull