On the other hand, one of the biggest drawbacks is the way GDIT negotiates the contracts. I would almost welcome a cut-back in salary to earn a few more hours of leave. We are provided a limited number of hours of "general leave", which we have to use for everything, including vacations, sick days, family 'urgencies' (family emergencies are covered under the FMLA, which isn't paid), doctor appointments... Literally everything. You would be surprised how fast 2 weeks of paid leave is used up when you need to use it anytime that you're not onsite when you are contracted to be there.
Also, the job is not difficult, and at our site we are not particularly busy all of the time. But if our customer has a day off, why are we still required to work? There are at least 3 days per year when our customer is out of office, which means we have no other tenants onsite, which also means that there is usually no work that can be performed. Keeping us onsite when there is no one else around is a waste of fuel and energy, AND it takes yet another day away from us when we could be using the day to handle our personal business (as opposed to taking leave and handling it when our customer actually needs us).
One final note is that the listed job descriptions for each position is not concrete, nor are they final. There seems to be a lot of tasks that get filed under "other duties as assigned" because they are contractual requirements. For example, technicians and engineers are frequently required to instruct classes, even though there are dedicated instructors. Often the actual instructors are over-tasked, so other personnel usually step up to take up the slack even though it is not in their job description. Since instruction and training is our primary contract focus, everyone, including engineers and administrators, usually end up teaching a class or two just to satisfy the contract.
The contract stuff such as the benefits and the job descriptions are not exactly GDIT's fault. This contract that I am currently on is actually a subcontract from another company, and they are the ones that dictate what GDIT can offer us. I haven't worked for any other contract or division within GDIT, so much of my personal experiences may not necessarily reflect "the norm", but rather "the exception". I am under the impression from other GDIT employees throughout the organization that GDIT really is a great company to work for.