Pros
The havok physics product is historically respected and the technical challenges you get to work on are potentially very interesting. Very smart people at the core and the safety of being owned by Intel means that occasional bumps in the road do not result in heads being chopped off very quarter.
Kontras
Very tight cultural center that makes it hard (impossible?) to fit in based on contributions alone. Many core employees have never worked anywhere else and so do not have broader work experience to help guide their actions. Historical management has potentially polarized the working culture to be less than open and trusting - but this may be changing. Ownership by Intel may leave management less focused on industry leadership vs. sustainability. Down turn in AAA games industry may challenge growth prospects without fundamental shifts in thinking and strategy