Pros
It's a better start-up job for most because (depending on location and/or management) you'll get paid above the average rate in fast food cities. Promotional opportunities can come often and raises for hourly employees happen bi-annually. Benefits are decent as well when available to enroll. And can't forget those employee discounts!
Cons
"Customer Service" to Whataburger as a whole means "do whatever the customer wishes, no matter how unreasonable it is". And more than often you will encounter the unreasonable for even the smallest mistakes made. There are even instances that customers will lie to you over the phone (instead of in your face) just to get a free meal, and there's only so much proof-checking you can do. This can warrant to anyone (myself included) just making up any story just to get another batch of food at the store's expense. Benefits are another problem, as they have their limitations as well. For regular employees, don't expect any vacation or sick pay at all, and expect your insurance window to be limited to one month out of the year instead of being available at any given time of the year. For anyone in management, sick pay rolls on as high as it can go, but vacation weeks are on a 'use it or lose it' basis - no roll-overs or cash ins. Bonuses are also on shaky ground as it's all based on rigged performance factors.