Pros
Great paid time off policy. Great diversity. It's interesting - You literally learn something new each day. Some flexibility with your work location. Decent but definitely not phenomenal benefits. They used to have fantastic tenure with many employees have 30+ years of service.
Cons
As most ADP employees will tell you, "You won't get rich by working at ADP". You do not get cost of living increases, you get merit increases. This means that if you work diligently and get a well above average performance review, you won't see much reward for that when it comes to your annual compensation. It's usually somewhere around 3% and that being on the higher end of the percentages. Promotions to a higher salary grade are at 4%. Bonuses are based on pay grade and for your average worker bee - those are between 5% and 7% of your annual income, so for most people this means catching up on bills, not buying a new car or taking an exotic vacation. There will be a push for employees to "homeshore" and then a couple of years later, there will be push for "intact teams" where you will need to be located in an office. Several departments were sent offshore and now we have "nearshore" teams, which means that the new hires and headcount replacements will be located in El Paso, Texas or Alpharetta, Georgia. This works well for the company because they can basically get two employees in either of those two locations for the cost of one in another less economically repressed areas (i.e. La Palma and Pleasanton, CA).