Pros
Apple is one of the most high profile companies around, so when you work here, you constantly see the results of your labors out in the world. Apple's customer base ranges from loyal to fanatical, so even when the company makes a mistake, there is a sense that a lot of people stand by the Apple. Apple pays well. It is a large company with huge financial resources, so when they want to, they are not afraid to spend money. Apple is a global company. People travel all over the world routinely, and Apple's presence is continually expanding across the globe.
Cons
Apple is essentially, a dictatorship. There are very few public companies that are so dominated by a single CEO, and Apple is probably the most extreme case. While everyone respects SJ, they also live in constant fear of him, and this trickles down to his senior management and so on throughout the entire company. Sometimes it seems like the entire management structure tries to mirror SJ, so you have a lot of VPs who are treated like royalty. It is difficult to get things approved at Apple. Every major decision must go through multiple levels of decision and then up to SJ himself. No detail is too small for him to review - it is amazing how he has time look at everything.