Pros
Good pay and benefits for unskilled/qualified lads. Car scheme is good aslong as you treat the car with respect otherwise repair costs can run very high, very quickly.
Cons
The list is endless! Too much mandatory overtime. Zero help/support when you're genuinely unfit for work. I was off for 6 weeks due to a head injury and received endless calls, letters, appointments at the personnel dept and threats. Provided all necessary proof that was asked of me and because it all stated I was unfit to be onsite never mind work I was threatened with the sack and that was after their own OH Dr said I shouldn't be there. You're basically just another body that can easily be replaced, regardless of length of service or skill level. If you're happy to stand and do the same thing literally every minute for up to 10 hours and take your supervisors crap lying down then this is the place for you.