Hard work. Laborious, but thats what you sign up for. doing the same thing every minute 220 times a day isn't the greatest, but it paid the bills and for that I'm thankful. Hard on your body, repetitive movements, and they don't care about you in there. If your injured they don't believe you, but again, thats just other people ruining it for the ones who are actually hurt. Honestly, GM as a company is ok I guess, its the people who run it and you work with that suck and have made it worse for everyone else.
PS: Probably don't get a job there because they don't have any loyalty.