Lots of employee freedom which is a bit of a catch 22. Yes you can play music but u may have to listen to other people's radio. Yes, you can eat when and where u so please, but ur gonna have to put up with various food smells all day. Yes, rules are made as time goes by, but with this some things may become annoying overly structured or frusteratingly underdeveloped.
Plenty of hours. Reasonable pay, given that the setting is overall far less stressful and exhausting as retail settings.
No real long term incentives such as anual raises. Job security seems questionable. No matter how well you perform, its far less predictable weather or not you will keep your position for a long time.