i don't really know too much about unions, as i've never worked at any type of union shop. from all i've seen, heard, talked with union people(the workers, not the office workers), the biggest problem seems to be the security of the positions. it seems that once you're in, you're in. period. the employer cannot fire you if you don't do your job well, or correctly,. they can't fire you for screwing off on the job, whereas in non union, if that was a habbit, you'd be gone. like i said though, this is what i hear.