Vantaggi
It varies wildly from group to group and office to office, but the firm leadership generally seems to have gotten on board with the "employer of choice" concept. We have no mandatory overtime, generous benefits, alternative work schedules, a firm commitment to professional and personal development, and opportunities for rotations and overseas assignments. Plus having the near death experience with the DOJ has cleaned out a lot of the bogus stuff that we used to try and sell to clients. I worked at a big 4 firm 10 years ago and the difference is like night and day. It's certainly not a cushy job, and not an 8-5 job, but for those who want to work hard and work toward becoming a valued advisor in the business world, KPMG would be a good place to start your career.
Svantaggi
You can get too specialized and pigeonhole yourself if you're not careful. And there are still some people who manage to rise through the ranks while paying lip service to the idea that employees are valuable assets that need to be nurtured.