Pros
Really amazing benefits for medical and dental, sick/paid leave, vacation ect... also the flex schedule was nice when I was working there. I could alter my schedule how I needed. I just had to complete my 80 hrs. Depending on your role you could really mix it up everyday. Really great flex system and work balance. On campus there are some great food options and you can eat lunch really quick and get right back to work. Actually overall there were a lot of improvements to the campus which were nice. Like an on campus shopping center where you can buy snacks ect... Most of the food trucks were really amazing and sometimes reasonably priced. I had a lot of experienced engineers around me to get advice from and ask questions. Great environment to learn in. You will be able to get up to speed very quickly and start taking on responsibilities fairly early and everyone in the office was always very supportive and willing to help for the most part.
Cons
Usually if you want to get promoted you will have to switch teams and negotiate a higher salary. Or if you are fairly senior and important enough in the team, get a job offer elsewhere and negotiate better terms, which maybe that is pretty standard but that is just what I noticed. In place promotions are typically not common but you can get them if you play the game right! I noticed a lot of people would switch teams to get higher pay or even switch companies. Work can sometimes get extremely delayed and complicated by policies and procedures. Boeing being a huge company has a lot of procedures to follow and sometimes this slows things down and makes things confusing sometimes. I would have to track down multiple people sometimes to get things approved/signed off. Frustrating when you're on a tight deadline.