Pros
Very good at what they do, excellent bond and currency traders, among the best in the world. Also exceptionally good at marketing and client service, better than any organization I have worked for in ideas-led selling. Smart people, who are very aggressive, will rough you up a lot, and can learn from that. Very little tolerance for BS, focused on results.
Cons
Insane culture, which makes most of the people who work there miserable. Founder is an egomaniac obsessed with comparing himself to Steve Jobs, makes all the staff watch videos of his management philosophy and take multiple choice quizzes. Very ruthless work environment, people who are not doing well are subjected to public sessions reviewing their weaknesses. Very bureaucratic, process orientated, and rigid. No real ability to use creativity or initiative. Was probably a great place to work 15 years ago but now kinda Stalinist, great for the few at the top, miserable for everyone else.