Pros
Very relaxed work environment. They try to run it like a more professional version of a fraternity.
Cons
The training is generally non-existent. Even the head trader taught his things that in his own words "haven't worked in years". You're basically thrown to the wolves with very little competitive advantage. There's also not a lot of transparency. The firm used to have a board showing how all trades were doing, but they got rid of it due to complaints. The complaints were because most of the younger traders were all losing money. It was hard to tell who knew what they were doing and who didn't. Also be aware that the firm makes money through rebates on market liquidity, so even when you are losing money the firm can still profit. That's a key thing to remember because they will always preach getting out of stocks early if they don't work right away and buying back in later when they do, so that they get double the fees. Most prop firms do this, but it's not readily apparent to a novice that the firm's interest don't necessarily always align with yours.