Pros
Great atmosphere to work in. Company is very flexible with working hours. Benefits package is awesome, much better than any other package for any other company I've worked for. Compensation is on or above par for similar work at other companies. The employee morale is second to none compared to other places I've worked. Everyone is extremely friendly and willing to help out in any way they can. ESRI is also very flexible when it comes to taking a day off or working from home for a day or so if need be. ESRI also does a great job in making sure that employees are kept up to date by sending them to training.
Cons
Working in a satellite office, it is sometimes difficult to feel as much a part of the ESRI workforce as would be if working in the Redlands office. It seems that the company is moving more towards a goals oriented form of performance review which I'm not too keen on. I would rather get evaluated on my performance throughout the year than get evaluated on whether or not I accomplished some goal that may or may not be directly related to the work I've been doing. I sometimes get the feeling that it is almost 'mandatory' to work 45 hours a week rather than the normal 40, but we do get paid hourly, so that's not a huge problem.