Pros
Imperial gives you true freedom to improve products and create. It was honestly the most fun I've ever had at work, and I regret not sticking around longer to learn even more. The product line is very traditional, but the leadership is very open to suggestions, input and improvements, so long as you're willing to understand the complexities of the industry.
Cons
Limited upward mobility, is a B2B company primarily so those hunting for B2C advertising opportunities will not find what they're looking for here.