Pros
Easy work for the most part, until the client dumps a bunch of extra work in your lap. Decent pay for the industry, but the entire industry underpays. Client employees and visitors treat you like an actual human being.
Cons
After the merger, what little benefits we had were pretty much all taken away. No new enrollment into the 401(k), no vacation for new employees (and possibly no more increase in vacation days for employees who previously would have gotten more at X years under the old company), no more pay for jury duty, and the health insurance premiums DOUBLED! There were never sick days with pay, total of only 5 vacation days a year. Between the inevitable sick day and client holidays where there's no work but we don't get paid, there's no days left to take an actual vacation. Not that you could schedule one anyway. Turnover is high, and it takes forever for them to hire new people. Last year one employee passed away shortly after another left, and it took almost 5 months to replace them both, during which another left. My supervisor has become intolerable and doesn't do her job. I'm left to train her employees from another site, who don't even meet the required skills for the job. No raises. We were promised a raise and then when it didn't happen the supervisor acted like she never said it was guaranteed. That would have been fine if she had said it was potential but not definite, but she said 'x raise is coming on y date!'