Pros
I loved working with my clients. I felt I had developed a great relationship of trust and rapport with some of them, and enjoyed seeing their business flourish from my SEO efforts. Most of my coworkers were fun, friendly, and approachable.
Cons
There is very little overhead, so if you have a complaint about a coworker's performance affecting your clients, good luck. Upper management is disorganized and has unclear expectations and rules about sick leave, PTO, and what is/isn't allowed during work hours. I never got an employee handbook, and was unclear about how to ask for time off, or go home early if I don't feel well. I constantly felt like I would get in trouble if I requested time off "by the book," even if it was completely justified. I also felt stuck. After three years, I got more responsibilities and raises, but my title never changed. I still had an entry-level title, with management responsibilities and salary. Since the company is so small, there is no upward movement and opportunities for managerial growth.