Over-worked and under-valued, watching the bubble burst
Pros
Working in digital, social and mobile is without a doubt *the* sector to be in, in Ireland these days, which is a great plus. Your role in FB is (pretty much) safe, which is more than can be said in other realms of the advertising (or indeed business) world. You'll also meet some amazing people here, you'll forge some real friendships. In advertising teams, there is a great feeling of getting to know the right people, doing (some of) the right things. Perks like free meals are increasingly ubiquitous, but are still nice.
Cons
The hours you work and the pressure you are under make the remuneration meagre in comparison (especially seeing as share options, previously promised to balance out low salaries, are now worth so little). The post-IPO scramble has made many lose confidence in the forward thinking and strategy of top level management; lower level management often lacks the skills or will to deflect from the increasing corporate politics. In engineering teams, there is a cult-like mentality towards the infallible CEO.