Covering other locations can be a bummer. I worked in the busiest locations down the street from my apartment. No commute, really good tips (an extra couple hundred per paycheck). Covering another location usually meant having to commute (at least one location doesn't have convenient public transport), and almost no tips. Huge loss in pay for the day plus traveling further means no one wants to cover these locations. This is the only con I can think of and it's somewhat petty of me to include as no one ever makes you cover another location, it's just a favor asked of you once in a while and it's 100% fine to turn it down. I will say that on the days that they absolutely need coverage for another location and no one has accepted yet, they should offer some sort of incentive.