Many opportunities. There are so many ideas that the company can't implement them all. The company understands that there needs to be a work life balance. Management regards it's employees and has always ensured that profits are shared. Meritocracy based organization, if you have a good idea it's likely that you'll be able to see it help the company. Recent acquisition by Citi offers many opportunities for working with other groups.
Cons
Current purchase by Citigroup has introduced large amounts of bureaucracy. ATD has traditionally been a nimble company that works at being a leader. With the new organization it takes far too long to get anything accomplished.
Great area, nice culture, aggressive and cut-throat yet laid back at the same time.
Amazing building to work in, it really blows you away the first time you see it.
Cons
Citi now owns the company, which has brought more negative to the company than positive ones.
Some of the stronger traders and engineers have left the company as a result.