Pros
Some people are nice and collaborative
Cons
The firm is run by a group of all-French "partners" milking on their success in stat arb. The organization is a strict hierarchy, where partners are nobleman and everyone else peasants. There is no transparency or open communication. No performance review. Personnel decisions are made behind doors and people are fired casually and frequently, The worst is for human traders, who are constantly squeezed for their IP and then fired once replaced by code. Better for French quants under the correct political umbrella. Do not believe in their recruiting lies about wanting to grow and diversify; the reality is that most partners are extremely insecure, arrogant and hostile to change. If you are a junior person, there is no upward mobility (serious French bureaucracy); if you are a senior person, you will report to quants who do not understand business, do not care and do not trust you.