Pros
Many consultants successfully use Exponent as a stepping stone to larger tech companies. The project work can sometimes be very interesting and some consultants appreciate overtime and bonuses for long hours (albeit many feel they would earn more overall compensation at larger tech companies).
Cons
The company has very high expectations of its consultants and doesn't always provide the resources necessary to achieve their expectations. In order to grow after the first few years, consultants are generally expected to generate their own business, but some junior consultants feel they are not fairly given credit for business they help bring in. Many consultants feel the performance rewards are too delayed.