Pros
Brilliant technology and smart people; challenging and interesting work; nice colleagues from all over the world; decent work hours with enough flexibility if you need time for the family. Pay is pretty good (no complaints there).
Cons
If they hire you (in the US at least) you might find that your colleagues are heads-down because they are afraid of the next layoff, or worried that their job will shortly be off-shored to India or the Ukraine. The new marching orders are "make yourself indispensable". But everyone knows that not everyone can be indispensable, so fear reigns, at least among the employees in the US. The CEO (Paul Ricci) is the most over-paid CEO in the land (at least in Massachusetts). Even the newest/ largest share holder, Carl Ican agrees with that assessment. So there you go: The CEO earns his outrageous pay by laying people off. You can imagine the effect that this has on morale ....