Pros
Decent pay, good company to have on resume. GSK is always advancing in science and technology, so the work can be interesting.
Cons
Work/life balance, contractors are treated as second-class to FTEs. Site is always at capacity so there is no automatic conversion to FTE and roles rarely open. It is hard to move up and develop here. People seem very unhappy when you walk through the open office. Also, open offices make it very hard to get anything done due to constant noise.