Avantages
First, let me say that SAP divides it employees into essentially 2 groups, contractors and regular employees. All the support positions (admin, facilities) are contractors. SAP has very deep pockets and pays well, provides great benefits, and offers free lunch. The office is gorgeous and mostly serves to host meetings. SAP is very laid back about flex time and working from home, so as a result, the office is almost completely empty on Fridays and rarely gets that lively in general. I suppose it has its politics and silly corporate shenanigans, but for the most part, everyone here is very nice and calm.
Inconvénients
Its a very quiet office, to the point that the air from the AC can be distracting. It's a German company so for the most part that means a cool, European environment, but some of the execs are a little weird. They're very rarely here though, so that has no effect. Tons of interns, a lot who don't seem to do anything, gives the office a weird hipster, high school feeling. Somewhat hilarious, considering that SAP makes software solutions, the office is so low-tech. The SAP "portal" has to be updated by lengthy email requests and is pretty useless.