Pros
I have enjoyed a great work environment, and worked with a lot of great people. Depending on your team, hours and location have been somewhat flexible as long as the necessary work is being completed on time and under budget. Employee training has been exemplary with almost any opportunity requested and within reason for the position have been approved and encouraged.
Cons
It has proven very difficult to receive pay increase even with exemplary performance. There have been recent improvements to benefits including an option for a yearly increase, but it is still fairly minor. That seems to be pervasive in this industry in general however, where one must leave to a competitor to receive any significant pay increase. There have been a few projects that were not handled well at all at the PM position, but thankfully these seem to be the minority of cases.