I worked at United Talent

Beautiful office, free food sometimes, lots of paid holiday vacations, great activities like "lunch and learn" for assistants and charity days. Also great benefits/retirement plan.

Cons

The pay is inhumanly low as an assistant, good luck trying to support yourself in LA on that salary for more than a year. That's why every assistant is a rich white kid - they have parents who can support them on $12/hour.