Horrendously bad communication for a company meant to be specialising in just that - communication!
Lost all my paperwork (NI number, address etc), made me mess around getting new copies.
Kept turning off air con in summer whilst I was heavily pregnant.
Air con extractor located by the smoking shelter at the Ashby site - disgusting!
Vending machines constantly failing to give what you'd paid for.
I changed my address with a TL over the phone during maternity leave - this, predictably, didn't happen and my P45 was sent to the wrong address due to their failure to do as I'd asked.
Crap money for the amount of stress the job entails depending on role and campaign.