Pros
Get to work on industry leading technology; few jobs will involve technology which reaches as many people as the hardware and software Apple produces Reasonable pay, but good benefits (on-site doctor, good health plan, etc.) Challenging work environment with a high potential for personal development
Cons
Absolutely no work/life balance; arguably one of the worst among large Bay Area companies. You should be OK not seeing your family and friends very often, and it helps to have a personality that thrives on constant stress and work. Schizophrenic upper and middle management, changing priorities constantly and treating engineers like disposable resources. Release goals are often unachievable, and code is often hurriedly thrown together. Software quality suffers as a result. Poor facilities: employees often have no place to park, and are all but required to eat at the on-campus cafeteria (which is not free) to avoid losing parking spots. It wasn't uncommon to have to spend 30 minutes hunting for parking in residential Cupertino after getting back from a doctor's appointment. Campus is generally overcrowded with work environments that aren't conducive to productivity.