Pros
People are mostly very nice. Certain uses of the products do help make the world a better place. For some departments, work/life balance is great. If your leader is a workaholic, though, that goes out the window. The campus environment is quite pleasant (art, walking trails, new buildings, great gym, etc.) The subsidized food is amazing. So is being able to order meals to take home. Being closed between Christmas and New Years is nice. If all you are looking for is comfort, SAS may be the place for you.
Cons
If you can see beyond the end of your own nose, SAS might not be the place for you. Feels like a cult...insular and self-absorbed. A culture of leaders not trusting their people and micromanaging their work. Tons of nepotism. Noticeable levels of sexism. People who have been there forever and never leave make it hard to advance. People who have never worked anywhere else or seen anything other than the world of SAS make it very hard to introduce any fresh ideas. Climate feels stale and inward-looking. Company doesn't see itself clearly and is far too impressed with itself. Bad leaders are left in place FOREVER. Customers say the product is antiquated and hard to use, and it feels like the business is starting to slip away. Company is managed by fiat. Dr. Goodnight is a dictator, and not always a benevolent one. Salaries are lower than they should be. If you don't have kids, you may feel like you are subsidizing everyone else's daycare bill. The SAS you hear about is the SAS of 20 years ago. When I left, morale was seriously slipping, just like the best place to work rankings.