Pros
This is definitely not for everyone. If you want to sit around doing nothing, waiting for a call this is not the place for you. We become integrated with our clients' teams on the construction sites I work on, become part of the overall safety solution. There is a high degree of professionalism required that many EMTs just can't rise to. There's not much tolerance for slackers, I've seen a few get terminated quite quickly. They expect you to be self motivated and capable of operating with limited supervision. The construction sites and media sets are a great change from riding a rig and offer exposure to the industrial safety and media environments. I've worked on both and have always been paid as agreed or sooner. Once I went full time, full benefits kicked in. I'm pretty sure the negative reviews here are from bad apples that got fired for not cutting it. The one guy on here from Iowa got fired for watching pornography on the company computer during working hours.
Cons
No room for slackers or unprofessional behavior. They expect more than a regular ambulance company. Sometimes the hours can get long unexpectedly due to construction delays.