Pros
Excellent product, reputation, location, etc. Autodesk has very good benefits and the people are generally great. Jobs are varied and interesting, but don't expect to work only 40 hours/week -- it is a high-pressure place and many employees work between 50-60 hours/week, often late into the night and on weekends. As a global company, you can expect to have a call with Europe in the morning and then a call at night with Asia. Be clear on your boundaries.
Cons
Success at Autodesk depends on how good your manager is. If you get a young, inexperienced manager, deliverables are unclear and inconclusive causing frustration and confusion. With a more experienced, knowledgable manager, communication is better and expectations can be met. It's important to get clear direction on ambiguous projects so as to avoid mixed messages. Find out as much as you can about your manager's experience and how long people have been in your group before signing on.