Pros
ESRI used to be a great company. If you are desperate for work, then by all means apply.
Cons
Any honest and meaningful assessment of ESRI on this website (or any website for that matter) will be negative. Any of the positive assessments are 'seeds' planted by either HR and the management for damage control. Look at the frequency of the negative assessments about ESRI on this website and their similarities. Also, pay attention to the level of detail provided in the negative assessments as opposed to the bland 'whitewash' comments of the positive assessments. I was the fourth person to leave the department in less than 2 years and none of us have been replaced. The work just keeps getting shifted around. Those that remain continue to be overwhelmed and under-appreciated. Not in a good way - ESRI is a privately-held company that answers to no one.