Pros
One's happiest days in life are when they finally rid themselves of such a wretched burden as being a PIMCO employee. Others in the working world know of the rigor and soullessness of PIMCO's work environment and are happy to take someone who can survive such an awful place, knowing that if they simply treat them with decency they will have an outstanding, content employee on their hands.
Cons
The list would be too long to put here. I worked in the administrative area for 3+ years and can honestly say I've never felt more demeaned, condescended to, torn down intellectually, and just plain disgusted by the degree of entitlement and pomp that embodies the typical PIMCO brat. They are all hungry, and kept that way, see, because it makes for a much leaner, meaner animal. At every level, they are sure to overburden the employee, and at no other level is the employee more burdened than at the administrative level. I did the work of assistants, coordinators, associates, and sometimes account managers, and was never paid a fraction what I was worth by the time I finally had the brains to quit. Even my mentor, an SVP, said it was a wise move to leave.