Pros
If you play the game, there is definitely opportunity for advancement. Be prepared to leave your morals and self-respect behind, however.
Cons
The company repeatedly tells bold-faced lies to its employees, which has led to the lowest morale in a workplace I have ever seen. They say they have the best salaries, but the salaries they offer are less than the competition on the same service level. They say they have the best benefits, until you find out about the ones being offered by other large casinos. And finally, they say that they are the best gaming company to work for - In my 32 years of gaming, I have worked for 5 large employers and have never seen a group of people who hate their jobs this much. Harrah's solution to low morale is toys and games.