Pros
As others have already stated, the pro's of working for AMS are primarily the ability to work for blue chip clients, and move accounts working flexibly. Female leader also a pro in my opinion - refreshing
Cons
Having worked for this company twice, on three accounts a few themes have struck me. 1. They promote people who are good recruiters into management positions but don't upskill them in people management skills. 2. The work can be very transactional - you don't feel like you can really add any value to the company you're delivering a service to 3. The pay is unbalanced, unequal (varies wildly according to which account you're on) and unfair. Both times I worked there no bonuses were paid out unless you received an "outstanding" rating in your appraisals. Both times there "wasn't enough money in the pot"