Pros
The pay was fair and benefits are decent (except for the barebones vision plan, if you need that), Frequent Traveler benefits (if you travel a lot for projects), training opportunities are plentiful, and you get to work with some great people that you will form connections with for life. Whether you want to be a Partner or know you won't be at EY for long, it is a great experience to have.
Cons
The work-life balance isn't great. Don't believe the messages from leadership on how concerned they are about people not working too much, they talk the talk but don't walk it. Change is hard to implement, while our practice had specific groups formed to improve processes and methods they weren't very effective. Most of all, politics is a major factor in how successful you are. If you don't have a Partner to look after you and support you, then you will not go far in the firm. The reason I left was due to a new Senior Manager who immediately took a dislike to me, then played the system to turn my Partners against me as well. Even though I had the support of other Senior Managers, Managers and Staff, my stature with the Partners was too weak for me to continue.