Pros: free lunches during crunch time, great coworkers for the most part
Cons: long hours, stressful environment, occasionally you feel like management is trying to hold you back with metrics
I was in their Medium to Large business sales division. As all sales jobs, there is stress that comes along with it. Dell managers for the most part aren't micro managers, but there are a few still out there. Everyone can get a little obsessed on hitting metrics versus booking business for the company. For example you could achieve your daily quota – more... but if you didn't make 50 outbound phone calls, you might still get threaten with a written warning. It's elements like that which led me to pursue other opportunities.
Most the people you work with will become great friends but across three campus sites, you can get a little resentment from your fellow coworkers as you cannot get credit for an order you worked on if someone else steals it at the last moment. Again this is a fact of a sales job, and anyone looking for a good sales job should expect this with any company.
Finally, Dell doesn't pay for overtime in the traditional way. Since you are salary and paid on commission they typically set up your quarterly quotas very high so you have to work long hours to obtain it. That could mean skipping your breaks, eating lunch at your desk, and/or working two hours more each day just to break even with your quota. They've already lost several court cases involving overtime laws (two times while I worked there) yet haven't made any changes to the way they handle it. – less