Pros
Plenty of walking, you can succeed if you have the right mentality.
The only good thing that came out of my experience selling METS tickets was the sad realization that I needed to go back to school to get away from a job like this. I quit, went back to school, and coincidentally got hired by the actual MLB as a software engineer. Lesson: stay in school people.
Cons
You work crazy hours, 9am -7pm 6 days a week. Saturdays are optional but are frowned upon if you don't go. Everything is performance based and the only thing that'll keep you driven is the constant reassurance that you'll eventually have your own office and make good money. Which is rare. Don't waste your years on false promises.