Pros
Free time, time to think or in many cases rethink your career
Cons
Management sucks and they are nothing but cutthroat rats and will blame you if a client withdraws from them . They will tell you one thing and you will hear another different thing especially when its client work or moving expenses which is a expensive decision. For example they hired people for the rtp area and as soon as people moved here they were trying to make them move again. (They hire in bulk just for the NC tax break until 2020) Managers do not care about your personal preferences just to make their quota. You also just sit there all day and twiddle your thumbs when you are not on a project or do one their pointless showcase projects for bootleg IBM knockoffs. (Why they dont want you working for IBM in contract clause). Lastly if you do get project work make sure its not higher than your pay grade. Managers will sometime stick you to project manager level style work that is beyond skill and comfort level and work where it requires you to be up at India time in the US. (but they wont tell you that until you are officially on a project, or the manager for the client tells you)