They never work for me. I often find the time and energy i put into critiquing other people's work was rarely reciprocated on the crits i received. They just always ended in frustration or resentment from me. After trying a few different ones, i just learned my lesson that they're not for me
Boy-howdie! And, in all honesty, my winning personality might have something to do with how quickly I've gone through crit buddies. Now, I work on my writing, this query/agent/pubisher shell game and reserve my crits for QT. Ain't y'all happy? 
