Pros
Boeing is a huge place to work. There are endless opportunities you'll eventually find the one you're interested in. The pay is above market average. Fairly well benefits. Paid education. these are just general stuff you get for working at Boeing. If you like job security, see the coolest technology on the market or try different things as an engineer, Boeing would be a good place for you to start.
Cons
Same reason as the best reason. Boeing is too big, it takes forever to get things moving, get a promotion, get things changed, too many hard headed senior workers that only like the old ways. When you are in Boeing, you'll start to see the cracks and flaws for such big company. If you are big for change, want to see results with huge vision or have great passion to have something done your way, it won't be such a good entry job. it wears you thin. When the pressure is on, the pressure is truly on big time. Do remember, there's probably one job in Boeing that you like, you'll just have to work your way there.