Pros
Exposure to lots of diverse enviroments. Knowledge sharing is not bad, Middle management at my location is excellent, with lots of feedback and information on whats going on elsewhere. They encourage submission of leads so you get rewarded for growing the business. Professional development is strongly encouraged, and rewarded when you do achieve it provided you make sure that management actually knows you've accomplished it.
Cons
Salarys are somewhat weak, re-embursement for milage is fairly poor. Some of the sales reps should be fired for the deals they sell to clients, When you have nearly impossible SLAs to meet it is a morale drain. Sometimes its impossible to get the account team to get you information you need to work a call, but generally your District manager can resolve that quickly. The offices tend to be in the middle of no where or the back side of office parks, but you're seldom in the office anyway so I don't know that this is a huge downside.