Pros
US Navy personnel, families, and retired people are mostly friendly. Able to get federal holidays off of work. Supervisor at least is honest that promotions and more hours are hard to come by due to store manager hiring more flex time workers instead of offering more hours or a better position if co-workers quit or are transferred to other Navy facilities due to their spouse being deployed to a different base.
Cons
Low pay, low hours, store manager hides the fact that you are hired as a "Flex-employee" until after you start working (even when you discuss how you researched the part-time benefit package during the interview, the store manager doesn't reveal that you won't be given benefits until after you start working there), unrealistic expectation of immediate knowledge of job duties and requirements after only approximately a week of work with no formal training beyond the required sexual harassment and security training videos (which took more than a day themselves and didn't involve any training on knowledge items like uniforms, working the register, inventory management systems, etc), very limited to sometimes no feedback or even contradictory feedback (your immediate supervisor says you're doing fine but the store manager says you're not), expected to do some manager level duties (inventory, ordering, pricing lists, etc) as a flex part-time employee, expected to have a fully available work schedule that changes despite only getting part-time work hours even if you're living off base.