Pros
If you're looking for a steady job with a good paycheck (aren't we all?), Boeing is a good place to work. It is a stable company. Many employees stay for many years (I know some who've been with the company for decades). The tuition reimbursement benefit is very good; basically they'll pay for any classes you want to take, as long as it's from an accredited institution. And, if you're working towards a degree, you'll even receive a gift of some company stock when you complete your degree. Health and dental benefits are good, as well. The entire company closes down the week between Christmas and New Years so that's a guaranteed one week of vacation you'll receive every year even if you fail to use the rest of your alloted vacation time.
Cons
It seems to me that, in many ways, Boeing operates like it's 1958 instead of 2008. I don't know if that's because the company itself is very old or because most of senior management is very old (in their sixties and seventies). But the end result, for the administrative staff, is not good. If you come in to Boeing as an Office Administrator (Boeing's term for an administrative assistant), it's a pretty safe bet that's all you will ever do there. And yes, that applies even if you have a degree (I do). For whatever reason, Boeing just will not promote an Office Administrator. Ever. And yes, that applies even if your performance reviews are very good (mine are). They would much rather bring in someone from outside the company than promote an Office Administrator.