Pros
Could be a great opportunity in terms of experience and portfolio/resume building, you can start with a significant title like "Manager" or "Director" but it's simply not worth it
Cons
CEO is destructive to the company. VERY quickly revolving door, people can barely stay employed for a year. Constant negativity, CEO and EIC are always in disagreement with one another making it impossible for an employee to prioritize work and accomplish anything of quality. Severe micromanagement, your phone will be ringing every 3 minutes with upper management asking how much you've accomplished but then piling more work on. You will not receive training and will be expected to understand everything on the first day, then treated like you're incompetent if you don't understand something. There is no team, typically one person is responsible for all the work in their department and CEO has little, if any understanding of the amount of work that goes into your job or the time is takes to do something.