Pros
Depending upon the project you can learn new technologies and the processes. Get good brand names on your resume. You will love the place if you like to write status reports – lot of them.
Cons
Be ready for LONG hours. Go home/hotel after 7 PM ready for status call at 7 AM. Lot of (filler) work that does not produce any value or satisfaction. Projects get staffed by bodies that not necessarily have skills that are needed. Don’t be surprise if you have given a full time resource (a developer in India) and the same resource is full time resource on other project at the same time. Probably they have 48 hours in one day. At least for folks in the field corporate organization structure is too complex to understand and meaningless for any practical purpose. I am not sure whose purpose it is serving. Too much pressure to maintain high billable hours and that creates a conflict resulting in unprofessional work ethics.