Pros
Work-life balance. Able to work from home in the morning or remotely if necessary as long as you get your work done. That said, if you are in Consumer Group - expect to be online up to 1 am as being logged in continuously is part of the culture. Dell still has a start-up culture which makes it fun, however, it also makes it inefficient. Things change on a dime so it makes it easy to react to market pressures. Always in meetings, always challenged - never sit at your desk for too long. Must be omnipotent about entire processes of company. Most people are fun at heart.
Cons
People are extremely competitive and sometimes backstabbers hiding information. In meetings all day - do your work after 5 pm, or during meetings on laptop. Multi-tasking culture. Job responsibilities not well-defined - everyone owns everything, you own nothing specifically or have to fight to keep what you own yours. People think your job is their business. No boundaries. Must be a star in meetings - sometimes that means at the expense at others. If you are not a star - and are not extremely verbal - even if you have nothing to say - say something - otherwise you are moving out. Very competitive, sometimes catty.