Pros
Benefits are great. Paid vacation, sick days, holidays. You have the ability to challenge yourself and propose new ideas and your input. Paid overtime that is typically available and encouraged (all voluntarily taken, never required). The people you work around are great and there is a great sense of friendship among everyone.
Cons
Salary is a little less than the competitors, but the availability and need for overtime can quickly change that figure drastically. Some tasks can be tedious, but that goes for anywhere. Some processes that are in place don't seem to make sense and it can be bothersome when asked to do something you know could be done better and more efficiently, but you are not the one that can decide how this is done (with stubborn leaders, advice is rarely taken into consideration). The use of some old technology (windows/office) used can often be a pain, but that's been recognized and is hopefully changing quickly.