Pros
My team is great about encouraging us to take time off and the work hours (for me) are truly 9-5, which I appreciate. I am lucky in that my managers are fantastic and absolutely set the standard for how we approach work / life balance and have been incredibly supportive. This review is based on my current experience, past experiences at other houses have been... not as good.
Cons
From my experience, the work environment differs greatly from imprint to imprint, and depends on whether you work in marketing, publicity, or editorial. No two are the same in terms of work expectations. Also, I would be remiss not to mention how low salaries are compared to other companies. Upward career progression can be slow, and even when you get raises, it's not always as much as you'd like for it to be.