Pros
It's not the worst place to work. Depends on your contract I guess, but don't expect to get promoted on performance. If people above you quit, or get fired, you'll get a raise.
Cons
I've never recieved any feedback from management. They once told me what they thought might be going on, and what to work on, but they have no idea. The customer can give you awesome feedback left and right, but unless you ask them to shoot an email to your boss, or they are gung ho enough to just do it for you, nobody will know. Doesn't seem like they care, they are just filling up spots, and hoping the person they put in that spot will work out well. CompuCom may pay pretty decent, but if you choose to have insurance, or paid days off, kiss your wage goodbye. If you are healthy and don't plan on getting sick, forgoe the health and get paid decently. ha. what a joke.