Pros
Lay offs come may be once in 3 years. For those three years you can do meaningless work and hide and get paid. But don't complain. As long as you are literally dumb and don't open the mouth you should be pretty safe here.
Cons
It used to be a wonderful place. But sadly almost all of the remaining Barclays folks have been "phased" out. With that all creativity, comradrie, enthusiasm, fun, trust and diversity are all gone. There wouldn't be any other place where precious marketing dollars are wasted down the drain without any ROI and frankly no one cares as long as the MDs are paid fat dollars. There is incompetency, nepotism, cronyism, favoritism blatantly galore everywhere you go. You see the aggression for nothing! Mostly these are people who are hell bent on pushing other people to the brink to get themselves elevated. You would see max 20% people doing the actual jobs and the rest 80% cruising and laughing all the way to the bank on others' hard work. The morale is at an all time low. Even the heads of technology groups seem to not to change the sad state.