Pros
Maersk is proud to be the world's largest shipping company. If you like to learn how to run a global company, this company is the great starting point in your career. I believe it has one of the world's best HR development programs that could help you to advance your career, either within Maersk or in other companies. Many of my colleagues in many countries were recruited aggressively by other big multi-national firms. Highly recommended!!
Cons
If you didn't join the company as a management trainee, your career growth may be limited. It's not always the case but non-management-trainee employees rarely become a senior position. Moreover, during the recruiting process, you'll be required to do personality test which will be used very seriously for hiring decision and for your entire career in Maersk. Although it does helps management to find the right man for the right job, too much focus on it may be harmful.