Ventajas
The people are why I stayed so long. I loved my co-workers. Immediate management was great and understanding as well.
Desventajas
Upper management will work you to the bone. I worked 70+ hours a week, for a 30k/yr salary - which means I was making $8.20 an hour. It was high stress and you were NEVER compensated for being on-call on nights and weekends. I was even promised a bonus after successfully completing a big project and then was told that I wasn't going to get it. So many people left after a year or two that they blamed the temp to hire company that recommended all of us, instead of admitting that they should have valued their employees and not work them to the bone - or at least compensate them fairly for the work they do. Anyone who is not in the sales department is viewed as "non-essential". I heard this directly from the CEO in a sales meeting.