Pros
Wide range of projects to work on though you can get pigeon-holed into designing for certain materials or project types depending on whose team you're on. Friendly environment with great colleagues and accessible senior managers. Overall great place to start your career and gain experience as a new engineer. If after you pass your SE it doesn't seem like you're on the track to become an Associate, you should think about taking your talents elsewhere.
Cons
High turnover among Associates and mid-level engineers with 5+ years of experience usually due to burn-out or better opportunities for career growth elsewhere. Emphasis on our "flat organization" is laughable. There are no clear pathways for career progression and a serious lack of professional development beyond technical skills. Senior managers are well-intentioned but TERRIBLE at following through with employee initiatives. Any promise of leadership or management training is just as quickly forgotten so it's hard to take them seriously. Employee reviews also happen sporadically and feels rushed and not well thought out. No dental or vision coverage. You'll receive a $500 stipend for related costs which is tough for anyone with a family.