Pros
Only colleagues, but NOT management.
Cons
GLG has an incredible gift of making you feel like you are worth nothing. They are great at promising great things for your future, but at the end they are only saying what you want to hear to make sure you stay. If you ever question anything the London management team is doing or if you ever raise concerns regarding your job, you will be put aside and considered a "trouble maker", which means that there is zero room for employees to speak up about issues they face and even less room for them to speak openly to the senior team leaders. For those who have the courage to leave (and it does take courage because GLG will completely break your spirit and destroy your self confidence), they realize at the next company what they are really worth, which is a lot more than what GLG has you believe. That is in terms of salary and job responsibilities. Be prepared to become a robot if you decide to leave GLG - to not be able to speak up, share your opinion or make suggestions. Or you will be punished.