Vantaggi
Reasonable compensation (not stellar but if you're non-manager you have overtime; though you can't really decide for yourself how much you want). 401 k contribution (independent of employee contribution). Though bear in mind that each office has its own culture so each employee's opinion is very office/manager specific.
Svantaggi
The company comes across as "cheap" in certain ways - i.e. trying to depress bonuses for junior staff or sometimes making excuses for no bonuses (and these are not "standard" rules because from talking to other practice employees, every one gets a similar/different story depending on circumstance). Expensive health insurance. Again, unless you're lucky to have a good manager, little support given to junior employees.