Pros: environment is friendly if rigid
Cons: there's a bit of a shadow culture, health co-pays are high.
Lighthouse is a very dynamic environment, and projects may be picked up or dropped on a dime as circumstances dictate. Most of the staff is very driven - there's a lot of midnight oil being burned.
Lighthouse has a somewhat different corporate culture influenced by the overlap with the CEO's other interest, martial arts. Interactions are more hierarchical than in most other silicon valley workplaces. However, everyone is very friendly and pleasant.