Work was very repetitive, which got boring.
Management really wasn't the best, decisions were sometimes unfair, treatment was also sometimes unfair, some managers were harsh from time to time and were more severe with good people than lazy people.
Co-workers were a fifty / fifty. Some were nice yet some were not. Some were productive and some weren't, which could get frustrating.
Free coffee, summer schedule
Co-workers, repetitive, hard work, boring