Pros
You can be the laziest person in the world, sleep on the job, take 3 hour lunch breaks, steal time and make multiple HR violations and you will not ever get fired. Management will talk to you about it, but never an actual reprimand or threat to your job security. The pay is great. You would have to actually do work at a private firm to earn a paycheck. You don't really have to ever earn your paycheck here if you don't want to. If you do poorly enough, they will stop assigning you work but you will continue to get paid. They have a few good paralegals that they treat pretty poorly with no thank you's that they will reassign your work to. There's such little work and low expectations here that you'll never really need to do anything other show up about 3 days a week, which you can totally get away with doing. Overtime is given pretty freely as well, even for easy assignments that can be completed in an hour. You'll never have to actually waste your time learning law or even going to a trial. You will get an amazing resume addition that suggests that you were somehow involved in the legal profession, which is the best Pro this place has to offer.
Cons
Management smiles in your face and plots behind your back. Sometimes the attorneys and management speak down to you but eventually they just start treating you like you don't exist and you can just come and go as you please. (Maybe this should have been a Pro. ) If you are good at your job and a hard worker, you'll be the person to get tons of work while your counterparts day drink at the local bar or simply come and go as they please. There is zero opportunity for advancement. Maybe a GS level or 2 if you get lucky and land a perm slot under 11. If you're term or a contractor, don't think they are going to ask you to stay or offer you a perm slot.