Pros
Dell provides reasonable pay and benefits (but you will work extremely hard for them). A highlight of my position was the opportunity to work with some excellent customers. There are also some great people within Dell (although these are routinely fires/let loose or downsized).
Cons
Work life balance is unacceptable! The expectation is you will be committed to an 80+ hour workweek (often in excess of 100Hr/week). Mid level managers are merely mouthpieces for senior management directives - with little ability to impact or improve the working conditions for those that do the work. Training is abysmal - mostly sales or marketing focused dribble that fails to educate. Ethics are horrible - great on paper, but in practice - some of the worst I have seen. If it sells product, management quickly turns a blind eye. Change may be inevitable, but at Dell, it has taken on a whole new definition. Changes in pay, changes in territory, changes in reporting structure, changes in team all work together to create a hurricane of chaos. In my opinion, this level of change is purely to hide the incompetence of sr. management at Dell. It has also fostered an extremely cutthroat culture in which team members become ruthless and will do whatever it takes, no matter how ugly or unethical, to stay at the top of the heap. As an employee at Dell, I found myself feeling like an utterly insignificant cog. My opinions didn't matter, my personal life (or need for one!) didn't matter, and creating a stable work environment didn't matter. Leaving Dell has been the BEST decision of my entire life