Toxic environment - very cliquey - will throw more junior members of the team under the bus to cover up for senior managements incompetence.
I've seen grads and junior people fired when trying to save failing accounts mismanaged by the senior team.
Very arrogant Creative Directors - the senior leadership hasn't changed in years but junior staff are churned out all the time.
Some of the worst project management people I ever worked with when I was there - extremely argumentative and toxic.
They throw these sad fancy dress parties which are only to try to portray this image that they are a fun place to work but it's just for the cameras.
Since i've been there they've downsized considerably so clearly people are realising what this companies about.