The culture that they brag so much about is mostly conservative white men and young, middle to upper-class, attractive, college grads and interns who share the same political, sociological, and religious beliefs.
If you do not fit into these categories, you will be treated with much high expectations and much less appreciation.
Bullying/blatant discrimination is seen as funny/ fun while expressing an issue appropriately to your manager or HR is labeled as toxic.
Overblown egos abound.
Promises get made and broken.
Gossip and cliquish behavior is pervasive.