Pros
You will meet people with some of the strongest work ethics ever, because of the 50+ hours per week they have to work. They are in the same boat as you, and strong bonds are formed.
Kontras
50+ hours per week. An hourly rate that is less than working retail at Christmas. Commission based on paid invoices - sales people have no control over when or what customers pay. Unrealistic sales goals. Best accounts given to favored employees. Complete lack of communication between upper management and employees. Layer upon layer of unnecessary management. Disregard for any suggestions for improvement (this actually works against you because you are being a troublemaker for not doing it the way it's been done for 50 years). No recognition, no opportunity for advancement. Benefits, pay, and amenities have been stripped away from the people who do the actual work. I could go on and on but I'm getting angry now. Just stay away. 50 hours a week at your local grocery store will be close to the same pay, and with much less stress.