Pros
They provide an occasional meal. The healthcare is good.
Cons
Your learning will stop after about 1 month on the job. The trading strategy they employ is basic and is completely dependent on a proprietary tool which is very buggy. No transferable skills here. Communication is done via yelling. When the same strategy that they execute every day performs poorly, the CEO explodes at the traders who then scream at the trading assistants. This is essentially the only feedback that you receive on the trading side. It's expected that you have to tolerate the abuse and somehow improve from the yelling. Trading assistants work 65 hours per week on a night shift for low pay. Then they graduate to day trading and still get poorly compensated except for the superstars. There is not much collaboration/sharing for fear of losing your income source. Employees often argue about petty daily PnL fluctuations instead of focusing on developing more successful strategies.