Pros
Lots of opportunities to work on technologies and processes that are hard to find elsewhere. Work hard, learn the technology, and the experience gained is quite valuable. Technical employees have discretion as to how they accomplish their tasks. Since management oversight is minimal, it's rare to feel micromanaged. Also, despite the large volume of work, overtime is rare and a 40-hour workweek is the norm.
Cons
US BioTek has a number of employees who are either not productive or are difficult to work with. When these favored employees cause trouble, management will either look the other way or blame the other employees for not being good enough or having "the right attitude". Needless to say, this creates a very antagonistic environment between the employees who feel entitled to work (or not) any way they wish and employees who are actually trying to do their best work for the company and customers. Management decisions often hinder the staff's efforts. Mainly because of the aforementioned minimal oversight, middle management often doesn't have enough knowledge to make important decisions, but does so anyway. Also, the benefits and compensation aren't competitive for more skilled employees.