Pros
OK salary Good benefits Strong name for the resume and is definitely seen as one of the better firms (relative to it's hulking neighbors State Street and Fidelity) Private nature of company makes it more stable and less likely to bend to public trends. People who have been at the company a long time are very nice - they really try to make the culture like it used to be. If you are an investor (portfolio manager, trader, research analyst, etc.) you are golden. Paid very well, partner track, work with some of the best in the world.
Cons
If you are not an investor (basically everyone who's not portfolio managment, trading, or investment research) then you're out of luck. They group most of these jobs into a division called GRG. Wellington's gone through a lot of change. As it's grown bigger, they've started losing their way for non-investor employees and the future doesn't look good. For example, client relationship teams (called CSAs, RAs, AMs, and RMs) are largely administrative positions. In the past, these use to be very competitve positions because they were for MBAs and/or CFAs. Now, these positions are mostly filled with ex-administrative assistants since the job requires almost no investment knowledge. Most of the relationship teams act as middlemen and don't provide nearly the same value as they did in the past. (i.e. they just email requests back and forth) Also, and this is kind of an unfortunate remnant of the old boys club of the investing world, Wellington is losing it's culture of being very kind and considerate. I've worked with many of the employees and I've noticed that the more tenured people who've been with the company back when it was small are SO nice and extremely smart. The new generation (of which I'm part of) are less considerate. I've seen many relationship team members act like they're god's gift to wellington and be rude and act on short tempers. This is surprising since it's usually the relationship teams that could, in all fairness, be re-orged to be 50% smaller with no noticeable change in value add. This is a big reason many of the best folks in GRG have left for other firms - they've seen their roles get watered down quite badly.