Pros
Founder John Kaiser is the best in the business at what he does. Technically sound, devoted to being the best accountant, works hard, and recognizing others who try to follow that mindset. Most devoted partner I have worked with in terms of both his clients and practice.
Cons
Unfortunately the other principals lack technical ability for their level and generally exist off JWK's success and reputation. The firm is much smaller than it will let on (a large % of the employee headcount are part time and bookkeeping). Still adhere to outdated employee practices such as disallowance of working from home, not allowing employees to contact clients directly, very rough on working mothers, and does not provide meals on work nights and weekends even though coming into the office is demanded by management. .