I worked in the deli, starting off as casual, then part-time, then casual again. The good thingsHaving an employee discount for groceries was helpful, especially during the Pandemic. Management also did a weekly lunch on Wednesdays and breakfast Sundays.
The challengesThere was a lot of bulling from Management. When reported there were no investigations just "Manager has told us a lot of stories about you" even though multiple people were reporting the same thing about these managers. If you reported them to HR then your shifts were removed from you, and you were given the bare minimum shifts they could give you without any legal trouble. Once there were too many complaints to ignore, they would just move the managers around the different stores or fire the staff putting in the complaints. Also, only staff that the mangers liked got goodbye parties when the left. The rest just got no shifts until they found another job and left.