Little to no help or support when you look for a new contract after your previous one has ended
Pros
For the most part, the Resource Managers (at least in my experiences) generally leave you alone and don't interfere with your work during the contract.
Cons
After your contract is up, good luck in getting anyone at Excell Data to take any interest in your search for a new contract. This may be due to the sluggish economy right now, but it's hard to know. I want to stay at Microsoft in some capacity, as I've worked there on and off as both a Full-Time Employee (blue badge) and a contractor for more than ten years. Right now, I am WAY beyond my 100-day break, and I'm desperately looking for a new contract. On several recent occasions, I've had unanswered responses to multiple email inquiries regarding my resume being sent to MS managers. I'm at the point where I'm thinking of using a different company to obtain contract employment at Microsoft.
