Pros
Until a few years ago, you did get a decent amount of cash when you rolled up salary, bonus, and stock grants/options. You do get to work with technology, and the rate of technology adoption is not too slow in certain areas of the firm, so in terms of software engineering roles, you can work with fairly relevant technology and keep abreast of tool/technique developments.
Cons
Disfunctional work environment. They have a set of proposed conduct standards which are flagrantly dismissed and unobserved. The capability of lower and middle management is not as strong as it needs to be. A lack of developed management skills, plus an environment of advancement/recognition facilitated by the failures of others, results in a work environment for individual contributors that is uncertain, chaotic, and unpredictable. For managers, the environment makes success difficult in that managers below the Director level do not have much ownership of responsibility. Even when managers want to do something to make things better, they are not equipped or empowered to make it happen. In addition, management grooming and development activities at Dell are insufficient - you may find in your area that managers often come from 2 backgrounds: personal friends/associates of the area Director, or top performing individual contributors promoted into management as a "career advancement" (even thought they have no desire to manage people).