Pros
The experience you gain here in irreplaceable - there is so much knowledge and so many resources to utilize and learn from to really build a career in Business Immigration law. There is a process for everything and a wealth of knowledge to be learned, from practice and all the experienced staff.
Cons
Management, particularly the partners and those who make the decisions for the firm/each office, will choose the bottom line and profit over the well being of their employees. The high volume work load with the quick expected turnaround time, unrealistic client expectations, and shortness of adequate staff has created high stress work environments that have burned out a lot of paralegals who are expected to just "push through" and contribute to an "all hands on deck" attitude when already at max capacity. There is no work life balance and the culture is not sustainable long term.