Pros
The people are smart, genuinely happy, get their work done and do it well. I'd do anything to help my teammates and my manager out, and know they'd do the same for me. People are respectful, fair, honest. Jerks are just not allowed. It's like a very healthy body -- if a bad seed sneaks in, a bunch of healthy cells surround it and gently show it how to behave. Pay is great, product is taking off, Benioff leads by example -- he started this company and he's still here. He's passionate about what we do, and gives credit to his team(s) for making his vision(s) come to fruition. Couldn't be happier.
Cons
None really. It is a large organization, and it's doubling/tripling in size. Being in such high growth mode, it can sometimes be challenging to on-board people quickly (get their laptops up and working, access to systems, etc sometimes takes a bit).