Pros
You'll get a lot of hours if you have open availability for 3 or more days a week. Short shifts You don't have to communicate much with fellow employees if you dislike them. If an order is really not your fault, It's easy to verify it whether you're in back or on register...the receipt tells all. Drive-thru is easy if there's 2 people working it and it's not super busy.
Cons
Low pay Sometimes rude customers Out-dated equipment Drive-thru is killer if you're working it by yourself.. Even with two people working it, it's impossible to meet the time requirements during rush. You also get management telling you to hurry ("pick it up drive-thru" to be exact) even when the order is huge and you have no control over how fast the food gets made, or the fact that the credit card machine is a billion years old and takes forever to process. Only get a 50% discount on food if you work over 5 hours and on your 30 minutes break only. You get a 10 minute break if you're working 4 hours but you can't get a discount...that's probably the worst con.