Zaxby's has over 600 locations primarily in the southeast. They are well know for their chicken but I'm here to talk shakes.
Quick Rant: Each time we ordered shakes, they were either delayed and took awhile after our original order or were completely forgotten about. When you're on a tight schedule, this is not something anyone wants to deal with. Especially when both times there were employees just standing around and barely any other customers in the store. If you've had similar experiences, please let me know in the comments.
As it stands, I'd recommend the shakes from Zaxby's if you have time to wait just in case they forget yours like they did mine. The banana pudding is definitely worth the wait and semi frustration though!