Pros
The experience you get at PwC is great, along with a high level of responsibility that is expected of you. Career progression is good, although there is a significant backlog of people waiting to get promoted to partner, which jams up the pipe for everyone down the line.
Cons
Work/life balance is a joke, as is "busy season." The trend nowadays is to try and staff from other lines of service, which results in individuals working "busy season" of 50 - 60 hrs/wk for 6 to 9 months of the year. The pay for this type of work is not comparable to what you could get at another job working 40 hours a week. While the experience is great, the sacrifices are plenty. The firm also cut back significantly on some of the more lavish perks that we used to enjoy, such as paid-for lunches and happy hours. There is not a good strategy for growing the practices or for cross-training employees. A significant amount of work is on-the-job training, which is not the best when we're sometimes expected to be the experts.