Ventajas
The hours are extremely flexible. You almost never have anybody looking over your shoulder. The management genuinely cares about the people who work there. They do some real goo din the world through their stewardship programs, which employees are encouraged to get involved with.
Desventajas
There is a constant, never-ending push to work more hours, to work later, to come in for weekends, etc. The methods are ALWAYS new, even if that is totally unnecessary. The company is getting much too large for the original, flat structure. The pay is sub-par. Things get way too bad before management will make a change. The politics are terrible: a few people who have been there for a long time make uninformed and generally disagreeable decisions while blaming the lower level guys when those decisions don't work out.