First off is the wages, very poor, you will also struggle to get the contracted hours, with overtime you will roughly get 44-47 hours per week working 7 days. Wages are normally always wrong and you have to fight for your money. There’s a real lack of support and empathy here, if you need time off to move house, or for a funeral etc...forget it! Try Tesco or Ocado...both are masters of their craft
Wages, work/home life balance, disorganisation...the list is endless!