Pros
Havok offers middleware technology and developer support, so you get to have the benefit of a fantastic work/life balance (unlike working directly in the game industry) but also get exposed to all the cool new tech and games coming out. Also, Havok is owned by Intel, which means great job security and benefits (Havok will not suddenly get bought out and turned over or go out of business any time soon!) Havok is also always trying new programs in order to constantly grow the business. They aren't afraid to take risks and make sure that the brand and the technology doesn't get stale.
Cons
Very little room to grow, promotions are few and far between, and almost all management positions are in Ireland. This can lead to slow direction from across the pond, and sometimes miscommunication happens as a result of the timezone/distance.