Employee Free Choice Act.. good or bad?

the Employee Free Choice Act is a bill that will help create and grow unions. companies who arent unionized will be "attacked" by people trying to unionize the company. my mom works for an un-unionized company and recently had a meeting to make the employees aware of this... people from unions will wait outside of the company property until workers start leaving. they will then approach the employees and try to get them to fill out and sign this card. if a majority of the workers fall into this trap, then the company will become unionized and will "own" the workers and pretty much tell them what they are gonna make even if its less than what they are already making... i dont get this... aren't unions the problem? look at unionized companies, the auto industry, airline industry, and the steel industry are the best examples. look at how they're doing. the industries are tainted by constant need for government help, layoffs, and cutbacks. this bill was voted on last year but failed to get past the senate. this time, it is hidden inside obama's economic stimulus package so it'll have a better chance of ping. what do you guys think about this?