Pros
Wonderful people of all age groups, you can learn from colleagues who have been here for decades. The work is challenging, in a good way. Good culture full of people who are kind and take pride in their jobs. You feel welcome, and are encouraged to reach out and ask for help if you need it. I was impressed by how well they transitioned to allowing remote work. Management is flexible and has a common sense approach. They clearly have faith in their employees to work hard and get things done without micromanaging.
Cons
The publishing industry as a whole is somewhat antiquated and cumbersome. There's limited growth because people stay so long, so rising through the ranks feels very regimented and bureacratic. PRH lacks the exciting dynamism of younger, smaller companies, but in exchange you get stability and the reliability of staff who have decades of expertise.