Cons: Just about everything else, unfortunately.
I work in Custodial services, where retention rates are historically low, so training new people is something I almost always have to do.
The hardest part of the job is dealing with the different personalities, and finding ways to bring the best out of these personalities. When you are at a point where you think you know their skill set, they've either been fired, or quit.
I am learning how to be an effective leader, and the importance of time management.
My co-workers are, for the most part, computer illiterate, including some areas in management.
The most enjoyable part of the job is access to the gym facility.