I enjoyed my short stint at American Express GBT. However, I would not recommend this workplace in the nascent years of one's career as this is a more stable, slow-paced work environment. The upside is you will have a lot of stability, slow but steady growth, and job security. But you will lose fuel if you stick around for too long. Also, it is a legacy workplace, so not the most satisfying place for millennials and Gen Y/Z.