Pros
Good chance to work in Asia if that's what you are looking for. A few years ago they had a very good relocation package, not sure if that is still the case. Negotiate a good salary when you join as very few of my colleagues received pay increases while I was there.
Cons
Now feeling the effects from years of promoting poor quality managers to positions where they are out of their depth and have become a hindrance to getting the job done. In IT you are just a body to be assigned to whichever project your line manager chooses, your own career progression goals are ignored. The IT PMs seemed to think that having daily status meetings (sometimes even twice a day) and calling them scrum meant they were 'doing agile'.... Changi business park office contains lots of dead wood completely detached from the front line. Visit the canteen at any time of day and you'll find people playing pool, having coffees and generally slacking off. Management need to get a grip and improve productivity.