Extremely hard work, physically and mentally; shop floor work and closes are physically demanding, and till work is mind-numbingly boring, so you have to be committed to all!
Most of the duty managers need lessons in how to be good managers. They can speak to you in out-of-order manners, and are often ruse to customers as well!
You do not get out on time if you are on a close shift. Ever. And they tell you off if you say you need to leave on time.
Ridiculous targets esp. on till speeds. We are told to scan as fast as we can, which results in physical pain, and stressed customers.
You get a break when the duty manager says so. Sometimes they forget, or are just very late, so you can sometimes be stuck on a till for 5hrs +. Their attitude is horrible if you say you are too hungry or need a break soon.
Lots of rude customers :(