Pros
Decent pay (though, long hours doesn't justify it at times), SOME occasionally good people to work with; nice building.
Cons
It's vastly understaffed. It's a business built on sales (as many are), but they staff in real time for volume, without planning ahead for the next push of sales, quarter ends, and Year Ends. They do not back up in anticipation for someone leaving the company for any period of time. Furthermore, it takes them 6 months to hire a replacement when an employee (inevitably) quits the company. Little to no room for actual advancement. If you are entry level, you may move up to a higher job family title, but don't plan on becoming management or leadership - those roles are reserved for UD Grads and former Vantiv and 5/3 employees. The person who said he/she does not see downsides is, in my opinion, still in the phase of trying to become the next director, though he/she rarely has a chance. To the same guy: I work 60 hours a week. Not because I want to, but because if I didn't, I would not be able execute my projects, and would be let go.
