Because of the nature of the industry, the customers are often rude/impolite. This is true for any customer service job but it seems when you add alcohol to the mix, things seem to get worse.
There's not a lot of room for growth, which is understandable. This is a carry-out so there isn't a lot of opportunity for upward mobility. It's staffed by college students and there are a lot of them around so the pool of potential employees is always flooded.
The store opens at 6am and closes at midnight everyday. Everyday. Including most holidays with the exception of sometimes they close a few hours early on Christmas Eve. Late nights & early mornings are a common thing if you are a full-time employee.