Pros
Being surrounded by brilliant people and getting to work on cutting edge science. The work can be very exciting and the energy in the company can be infectious at first.
Cons
They will expect you to work 6-7 days a week from 6am-8 or 9pm in order to get all of your work done. The legal group needs to triple in size in order to be able to handle the workload that they have. The company operates in a "Lean and Mean" mentality, which means that for every one attorney, there should be 3 attorneys doing the job. The average person stays at the company for 1- 1.5 years and then leaves for other pursuits. The company pays decently and expects their lower salaries to be supplemented by large stock offerings but the stock has leveled off and the benefits are not nearly as worthwhile. Managers do not have the time necessary to truly guide new employees and that leaves new employees to fend for themselves in a very cut throat sink or swim environment.