Pros
Stable company. Pretty big but generally good environment. Salaries are not very competitive but, if right talent, probably can get a good offer. A lot of smart people and technology is complex (a lot to learn). High market share in US and Latin America but not bad outside either. Company trying to transform itself into a true technology company.
Kontras
Global Distribution System (GDS) side (Travel Network) is the cash cow of the business and the whole business model is under a threat (although the threat has existed for a long time). As company is trying to become a true technology company, it is stretching itself a bit so there are layoff cycles. New outside blood is being brought in that is a threat to old-timers but also threatens to push out the deep knowledge of industry and the system. Salaries are not very competitive but new hires can probably demand more if the right talent.