Contractors and FTEs are separate and it depends on your agency whether you have access to benefits including sick time, PTO, health benefits, etc. Contractors are hired specifically to work on projects, so they are usually not included in long-term strategic planning.
As a short term gig it’s a nice place to be, the free food, snacks, drinks, low-cost shuttles and ability to bring your dog to work are all pluses that you likely won’t get elsewhere.
Working as a contractor has no influence on your ability to be converted to a full time employee— you still go through the same interview process as external candidates and are judged as any other candidate is.
Free food, access to gym, access to shuttles, bring your dog to work, flexible hours (depends on role/department)
Instability- some projects are cut short with no warning