Pros
Polar is a manufacturing line producing high tech products, that's kinda neat. Competitive pay, good health benefits, convenient location in Bloomington for most people's commutes. Engineers will face a variety of challenges so you won't get bored, but your good work won't always be appreciated, see below.
Cons
This company has been working on a shoe string budget for years, there is never any funding available to make the kinds of improvements that are really needed. The equipment in all areas is a hodge podge from various vendors and from all vintages. The biggest challenge is to keep it all running and to detect the next big quality issue early enough to prevent the need of throwing thousands of wafers in the rubbish bin. Management is so focused on "making the numbers" that quality comes secondarily and even though this lesson has been learned many times over the years, it still get repeated way too often.